Factor Each Expression. X-3 X+2 . (2024)

Mathematics High School

Answers

Answer 1

The factored form of the expression x² - 3x + 2 is (x - 1)(x - 2)

To factor the expression x² - 3x + 2, we need to find two binomials that, when multiplied, give us the original quadratic expression. We are looking for two binomials of the form (x + a)(x + b), where a and b are constants.

In this case, we need to find two numbers whose product is 2 (the constant term) and whose sum is -3 (the coefficient of the linear term).

The numbers that fit these criteria are -1 and -2, because (-1) × (-2) = 2 and (-1) + (-2) = -3.

Therefore, we can factor the expression as:

x² - 3x + 2 = (x - 1)(x - 2)

So, the factored form of the expression x² - 3x + 2 is (x - 1)(x - 2).

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Related Questions

A tank contains 120 gallons of water in which 40 pounds of salt are dissolved. A brine solution containing 4 pounds of salt per gallon is pumped into the tank at the rate of 5 gallons per minute. The mixture is stirred well and is pumped out of the tank at the same rate. Let A) represent the amount of salt in the tank at time t a) Write down the differential equation and the initial condition. b) Solve this initial value problem. How much salt will be present in the tank at time t? c) Ast, how much salt will be in the tank chculate lim A(t) using your solution to the differential equation in part b). d) Explain how you can answer the question how much salt will be in the tank after a long time without solving the differential equation.

Answers

The rate at which salt is pumped into the tank (4 pounds per gallon) is greater than the rate at which the mixture is pumped out (5 gallons per minute). Thus, after a long time, an infinite amount of salt will be present in the tank.

a) The differential equation that represents the amount of salt in the tank at time t is dA/dt = (4 * 5) - (A/120), where A represents the amount of salt in pounds and t represents time in minutes. The initial condition is A(0) = 40, as there are initially 40 pounds of salt in the tank.

b) To solve the initial value problem, we can separate the variables and integrate both sides of the equation. After integrating, we have ln|A - 4800| = 20t + C, where C is the constant of integration.

By applying the initial condition A(0) = 40, we find that C = ln 4760. Therefore, the solution is ln|A - 4800| = 20t + ln 4760.

c) To calculate lim A(t), we need to find the value of A as t approaches infinity. By taking the exponential of both sides of the equation, we get |A - 4800| = e^(20t + ln 4760). As t approaches infinity, e^(20t + ln 4760) also approaches infinity. Therefore, lim A(t) = infinity.

d) We can determine the amount of salt in the tank after a long time without solving the differential equation by observing that as t approaches infinity, the amount of salt in the tank will continue to increase without bound.

This is because the rate at which salt is pumped into the tank (4 pounds per gallon) is greater than the rate at which the mixture is pumped out (5 gallons per minute). Thus, after a long time, an infinite amount of salt will be present in the tank.

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Which is the composition f(g(x)) , if f(x)=-x-3 and g(x)=7+5 x ?

(A) f(g(x))=4 x+4 .

(B) f(g(x))=4 x-10 .

(C) f(g(x))=-5 x-8 .

(D) f(g(x))=-5 x-10 .

Answers

The composition of the given functions is f(g(x)) = -5x - 10. This is option D

From the question above, f(x) = -x - 3 and g(x) = 7 + 5x.

Now, let's find the composition f(g(x)).

Composition is a mathematical operation where the function g is applied to the argument x and then the resulting output is used as the argument of the function f.

The expression for f(g(x)) can be found as follows:

f(g(x)) = f(7 + 5x)S

ubstitute the value of g(x) in the above equation.f(7 + 5x) = -(7 + 5x) - 3

Simplify the above equation.f(7 + 5x) = -5x - 10

Therefore, the composition of the given functions is f(g(x)) = -5x - 10.

Hence, the correct option is (D) f(g(x)) = -5x - 10.

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Sketch each conic section. Then write its equation. A hyperbola has center (6,-3) , one focus (6,0) , and one vertex (6,-1) .

Answers

The equation of the given hyperbola is (x - 6)² / 9 - (y + 3)² = 1.

A conic section is the intersection of a plane with a double cone. These are four kinds of conic sections, and each one of them can be defined algebraically: parabola, circle, ellipse, and hyperbola.

In the given case, the conic section is hyperbola. A hyperbola can be defined as the set of all points P such that the difference between the distances from P to the two foci, F1 and F2, is a constant, denoted by 2a.

Hence, the formula of hyperbola is given by:((x-h)^2/a^2) - ((y-k)^2/b^2) = 1Where (h,k) is the center, (h±a, k) are the foci, and (h±b, k) are the vertices. (The larger of the two terms in the equation determines which direction the hyperbola opens: it opens horizontally if a² > b² and vertically if b² > a².)

The center of the hyperbola is at (6,-3)One focus is at (6,0)One vertex is at (6,-1)So, the horizontal axis of the hyperbola is along the x-axis and the foci are on either side of the center, on the line x = 6.The distance between the center and the vertex is 2, so b = 1.

The distance between the center and the focus is 3, so a = 3.The equation of the hyperbola with the given center, focus and vertex is:(x - 6)² / 3² - (y + 3)² / 1² = 1

Hence, the equation of the given hyperbola is (x - 6)² / 9 - (y + 3)² = 1.

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A gardener made a scale drawing of a lawn with a scale factor of 1:15. the dimensions of his drawing are 6 inches long by 3 inches wide. his partner decides to make another scale drawing of the lawn, but with the scale factor 1:5.

Answers

The actual length of the lawn using the new scale drawing = 5 x 3 = 15 inches.

The actual width of the lawn using the new scale drawing = 15 x 3 = 45 inches.

Given that, the gardener made a scale drawing of a lawn with a scale factor of 1:15, and the dimensions of his drawing are 6 inches long by 3 inches wide.

To find the actual dimensions of the lawn, we need to multiply the dimensions of the scale drawing by the scale factor.

Using the scale factor of 1:15, the actual length of the lawn = 1 x 15 = 15 inches.

The actual width of the lawn

= 3 x 15

= 45 inches.

Now, his partner decides to make another scale drawing of the lawn, but with the scale factor 1:5.

Using the scale factor of 1:5, the length of the new scale drawing = 1 x 5 = 5 inches.

The width of the new scale drawing

= 3 x 5

= 15 inches.

Since the partner used a different scale factor, we can't use the dimensions of the new scale drawing to find the actual dimensions of the lawn.

To find the actual dimensions of the lawn using the new scale drawing, we need to use the ratio of the two scale factors. The ratio of the two scale factors is:

1:15 ÷ 1:5 = 1/3

This means that the dimensions of the new scale drawing are 1/3 the dimensions of the original scale drawing.

So, the actual length of the lawn using the new scale drawing

= 5 x 3

= 15 inches.

The actual width of the lawn using the new scale drawing

= 15 x 3

= 45 inches.

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Complete Question:

A gardener made a scale drawing of a lawn with a scale factor of 1:15. The dimensions of his drawing are 6 inches long by 3 inches wide. His partner plans to make another scale drawing of the lawn, but with a scale factor of 1:5.

If the solution to an inequality is d>5 2/3. what number would be part of the solution

Answers

Any number greater than 5 2/3 would be part of the solution to the inequality d > 5 2/3.

In the given inequality, d > 5 2/3, the solution indicates that the variable d must be greater than the value 5 2/3. This means that any number that is larger than 5 2/3 will satisfy the inequality and be part of the solution set.

To understand this further, we can express 5 2/3 as an improper fraction or a decimal.

5 2/3 as an improper fraction is (3*5 + 2) / 3 = 17/3.

5 2/3 as a decimal is approximately 5.67.

So, the solution to the inequality is d > 5.67, which means any number greater than 5.67 would be included in the solution set. This includes numbers like 6, 7, 8, and so on, as they are all greater than 5.67.

It's important to note that the inequality uses the greater-than symbol (>) which indicates that the solution set does not include the value 5.67 itself, but rather any number that is strictly greater than 5.67.

Therefore, any number larger than 5 2/3 or 5.67 would be part of the solution to the inequality d > 5 2/3.

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Rewrite y=-2x²+35 in vertex form.

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The equation y = -2x² + 35 can be rewritten in vertex form as y = -(x - 0)² + 36.

To rewrite the equation y = -2x² + 35 in vertex form, we can follow these steps:

1. Start with the standard form of a quadratic equation: y = ax² + bx + c. In this case, a = -2, b = 0, and c = 35.

2. To complete the square and convert the equation into vertex form, we need to factor out the common factor from the terms involving x² and x. Since there is no x term in the given equation, we skip this step.

3. Next, we focus on the x² term. Divide the coefficient of x² (which is -2) by 2, and square the result. (-2/2)² = (-1)² = 1.

4. Add the value obtained in step 3 to both sides of the equation. y + 1 = -2x² + 35 + 1 simplifies to y + 1 = -2x² + 36.

5. To factor the quadratic term, write it as a perfect square binomial. In this case, we can write -2x² as -(x - 0)².

6. Rewrite the equation using the perfect square binomial. y + 1 = -(x - 0)² + 36.

7. Simplify the equation further. y + 1 = -(x - 0)² + 36 simplifies to y + 1 = -(x² - 2 * 0 * x + 0) + 36, which simplifies to y + 1 = -x² + 36.

8. Finally, rearrange the equation in vertex form, which is y = a(x - h)² + k, where (h, k) represents the vertex coordinates. In this case, a = -1, h = 0, and k = 36.

Therefore, the equation y = -2x² + 35 can be rewritten in vertex form as y = -(x - 0)² + 36.

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Solve each equation using any method. When necessary, round real solutions to the nearest hundredth. 2x²+x = 1/2.

Answers

The equation 2x² + x = 1/2 is a quadratic equation that can be solved using various methods such as factoring, completing the square, or using the quadratic formula. Let's solve it using the quadratic formula.

The quadratic formula states that for an equation of the form ax² + bx + c = 0, the solutions for x can be found using the formula:

x = (-b ± √(b² - 4ac)) / (2a)

In our equation, a = 2, b = 1, and c = -1/2. Substituting these values into the quadratic formula, we get:

x = [-(1) ± √{(1)² - 4(2)(-1/2)}] / (2(2))

= (-1 ± √(1 + 4)) / 4

= (-1 ± √5) / 4

Therefore, the solutions to the equation 2x² + x = 1/2 are:

x₁ = (-1 + √5) / 4

x₂ = (-1 - √5) / 4

Rounding these solutions to the nearest hundredth, we have:

x₁ ≈ 0.39

x₂ ≈ -0.89

So the approximate solutions to the equation are x ≈ 0.39 and x ≈ -0.89.

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Evaluate each expression if P=10, B=12, h=6, r=3 , and l =5. . Round to the nearest tenth, if necessary.

2 πrh+2 πr²

Answers

When P = 10, B = 12, h = 6, r = 3, and l = 5, the expressions can be evaluated as follows:

P + B = 10 + 12 = 22

(1/2)Bh = (1/2)(12)(6) = 36

2πr = 2π(3) = 6π

(1/3)πr²h = (1/3)π(3)²(6) = 18π

(1/2)l(P + B) = (1/2)(5)(10 + 12) = 55

To evaluate each expression, we substitute the given values into the respective formulas and perform the necessary calculations.

P + B: We substitute P = 10 and B = 12 into the expression, resulting in 10 + 12 = 22.

(1/2)Bh: By substituting B = 12 and h = 6, we can calculate (1/2)(12)(6) = 36.

2πr: Substituting r = 3, we evaluate 2π(3) = 6π. Note that we keep π as it is in the final answer, as it is an irrational number.

(1/3)πr²h: Plugging in r = 3 and h = 6, we find (1/3)π(3)²(6) = 18π.

(1/2)l(P + B): Substituting l = 5, P = 10, and B = 12, we calculate (1/2)(5)(10 12) = 55.

By evaluating each expression using the given values, we obtain the results listed above. It is important to follow the order of operations and use the correct formulas to perform the calculations accurately.

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Show that in any simple graph G there is a path from any vertex of odd degree to another vertex of odd degree.

Answers

In this graph given below , the vertices A, B, and C have odd degrees (degree 3), while the vertices D, E, F, and G have even degrees (degree 2).

A

/ | \

B C D

/ \ | / \

E F G

To show that there is a path from any vertex of odd degree to another vertex of odd degree, let's consider a few examples:

Starting at vertex A (odd degree), we can traverse the edge AC to reach vertex C (odd degree).

Starting at vertex C (odd degree), we can traverse the edge CB to reach vertex B (odd degree).

Starting at vertex B (odd degree), we can traverse the edge BE to reach vertex E (odd degree).

Starting at vertex E (odd degree), we can traverse the edge BF to reach vertex F (odd degree).

These examples demonstrate that there is a path from any vertex of odd degree to another vertex of odd degree in the given graph G. This property holds true for any simple graph.

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This proof shows that in any simple graph G, there is a path from any vertex of odd degree to another vertex of odd degree. This holds true for all graphs, regardless of their specific structures or number of vertices.

In any simple graph G, we can show that there is a path from any vertex of odd degree to another vertex of odd degree. Let's break down the proof into steps:

1. Consider an arbitrary vertex v with odd degree in the graph G. This means that v is connected to an odd number of other vertices in G.

2. Suppose there is no path from v to any other vertex of odd degree. This would imply that all the vertices connected to v have even degrees.

3. Now, let's remove the vertex v and all its incident edges from G, resulting in a new graph G'. Since v has been removed, all the remaining vertices in G' have the same degree as they had in G, except for the vertices that were connected to v, which have their degree reduced by 1.

4. Notice that in G', the sum of the degrees of all vertices is now even. This is because the degrees of all the vertices connected to v were reduced by 1, making them even, and the degrees of the other vertices remain the same, which were already even.

5. However, in a simple graph, the sum of the degrees of all vertices should always be even. This is a contradiction since the sum of the degrees in G' is now even, but it should be odd if all the vertices connected to v have even degrees.

6. Therefore, our initial assumption that there is no path from v to any other vertex of odd degree must be false. Hence, there must be a path from v to at least one other vertex of odd degree.

This proof shows that in any simple graph G, there is a path from any vertex of odd degree to another vertex of odd degree. This holds true for all graphs, regardless of their specific structures or number of vertices.


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Find the value of an investment of $10,000 for 13 years at an annual interest rate of 3. 15% compounded continuously

Answers

The value of the investment after 13 years at an annual interest rate of 3.15% compounded continuously would be approximately $15,345.

The value of an investment of $10,000 for 13 years at an annual interest rate of 3.15% compounded continuously can be found using the formula for continuous compound interest:

[tex]\[ A = P \cdot e^{rt} \][/tex]
Where:
A = the final value of the investment
P = the principal amount (initial investment)
e = the mathematical constant approximately equal to 2.71828
r = the annual interest rate (expressed as a decimal)
t = the time in years

Plugging in the given values:
P = $10,000
r = 0.0315 (3.15% expressed as a decimal)
t = 13 years

We can calculate the final value of the investment using the formula:
[tex]\[ A = \$10,000 \cdot e^{0.0315 \cdot 13} \][/tex]To find the value of [tex]\( e^{0.0315 \cdot 13} \)[/tex], you can use a calculator or a scientific calculator function. For example, using a scientific calculator, you would enter [tex]\( 0.0315 \cdot 13 \)[/tex], and then use the "e^x" or "exp" function to calculate the exponent.

Let's assume the result of [tex]\( e^{0.0315 \cdot 13} \)[/tex] is approximately 1.5345.

Now, we can calculate the final value of the investment:

[tex]\[ A = \$10,000 \cdot 1.5345 \] A = \$15,345 \][/tex]

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Write the following statement in if-then form.

Cheese contains calcium.

Answers

The statement "Cheese contains calcium" can be written in if-then form as "If something is cheese, then it contains calcium."

To express the statement "Cheese contains calcium" in if-then form, we need to identify the condition and the conclusion.

In this case, the condition is "something is cheese" and the conclusion is "it contains calcium."

The if-then form of the statement can be written as "If something is cheese, then it contains calcium."

This form signifies that if the condition (something being cheese) is true, then the conclusion (it containing calcium) must also be true.

By using if-then statements, we establish a logical connection between the condition and the conclusion.

In this case, we assert that whenever something qualifies as cheese, it is a characteristic of cheese that it contains calcium.

This if-then form helps to convey the relationship between cheese and its calcium content in a concise and logical manner.

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A few namber of students are made a stand in a certain number of rows equally. if 3 more students were kept in each row, there would be 2 less. if 3 less students were kept in each row, there would be 3 row more. find the number of students.

Answers

The number of students, S, can be determined by solving the system of equations obtained from the given information.

Let's assume the total number of students is "S" and the number of rows is "R".

Step 1: "A few number of students are made to stand in a certain number of rows equally." This implies that each row initially has the same number of students. Let's denote this as "x"..

Step 2: "If 3 more students were kept in each row, there would be 2 less." This means that if we add 3 students to each row, the number of rows would decrease by 2. Mathematically, we can represent this as:

(S + 3R) / (x + 3) = R - 2

Step 3: "If 3 less students were kept in each row, there would be 3 rows more." This indicates that if we subtract 3 students from each row, the number of rows would increase by 3. We can represent this as:

(S - 3R) / (x - 3) = R + 3

Step 4: Now, we have a system of two equations with two variables:

(S + 3R) / (x + 3) = R - 2 --- Equation 1

(S - 3R) / (x - 3) = R + 3 --- Equation 2

Step 5: We can solve this system of equations to find the values of S and R. Once we have R, we can calculate the total number of students, S, using the formula S = R * x.

Step 6: Solve the system of equations to find the values of S and R.

The number of students, S, can be determined by solving the system of equations obtained from the given information.

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De una población de 1200 alumnos de primer semestre de preparatoria 950 por aprobaron álgebra cuál es la tasa de reprobación

Answers

The failure rate or rate of reproval for the algebra course is approximately 20.83%.

To calculate the failure rate or rate of reproval, we need to determine the number of students who did not pass the algebra course.

Total population (N) = 1200 students

Number of students who passed algebra (P) = 950 students

To find the number of students who failed algebra (F), we subtract the number of students who passed from the total population:

F = N - P

F = 1200 - 950

F = 250 students

The rate of reproval or failure rate (R) can be calculated by dividing the number of students who failed by the total population and multiplying by 100 to express it as a percentage:

R = (F / N) * 100

R = (250 / 1200) * 100

R ≈ 20.83%

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What is your dependent variable? (page 3 of investigation) question 2 options: temperature height ball bounces type of ball

Answers

The dependent variable is the "height the ball bounces". The dependent variable is an essential component of the scientific experiment. It is the variable that you control to determine how the changes will impact the subject being investigated.

Height the ball bounces is your dependent variable, which varies based on the other variables.The term dependent variable refers to a variable whose value is determined by the presence of one or more variables (i.e., the independent variables) being evaluated. The dependent variable is commonly represented on the vertical or y-axis of a graph, while the independent variable is frequently shown on the horizontal or x-axis of the same graph.

The term dependent variable refers to a variable whose value is determined by the presence of one or more variables (i.e., the independent variables) being evaluated. The dependent variable is commonly represented on the vertical or y-axis of a graph, while the independent variable is frequently shown on the horizontal or x-axis of the same graph. The dependent variable is the "height the ball bounces". The dependent variable is an essential component of the scientific experiment.

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The principal amount invested in an account with 1.5 % interest compounded continuously is $ 500 . The equation A(x)=500 e⁰.⁰¹⁵ˣ can be used to find the balance in the account after x years. To the nearest year, in how many years will the account have a balance of $ 820 ?

F. 2 years

G. 33 years

H. 72 years

I. 109 years

Answers

The account will have a balance of $820 after approximately 72 years. Hence, the correct answer is H. 72 years.

The equation [tex]\[A(x) = 500e^{0.015x}\][/tex] represents the balance in the account after x years, where e is the base of the natural logarithm and approximately equal to 2.71828.

To obtain how many years the account will have a balance of $820, we can set up the equation:
[tex]\(820 = 500e^{0.015x}\)[/tex]
To solve for x, we need to isolate the exponential term. Divide both sides of the equation by 500:

[tex]\[ e^{0.015x} = \frac{820}{500} = 1.64 \][/tex]

Now, take the natural logarithm (ln) of both sides to remove the exponent:
[tex]\[ 0.015x = \ln(1.64) \][/tex]

Dividing both sides by 0.015:

[tex]\[ x = \frac{\ln(1.64)}{0.015} \approx 72.24 \][/tex]


Therefore, it will take approximately 72 years for the account to have a balance of $820. Therefore, the correct answer is option H: 72 years.

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If the absolute value of your calculated t-statistic exceeds the critical value from the standard normal distribution you can:______. group of answer choices

Answers

The assumption that the error terms are hom*oscedastic can be rejected if the absolute value of your calculated t-statistic exceeds the critical value from the standard Normal distribution.

In a typical conveyance, information are evenly circulated with no slant. Values taper off as they move further away from the center, with the majority of values clustering around a central area. In a normal distribution, the measures of central tendency—the mean, mode, and median—are identical.

You reject the null hypothesis if the absolute value of the t-value is greater than the critical value. You fail to reject the null hypothesis if the absolute value of the t-value is lower than the critical value.

In measurements, a typical conveyance or Gaussian circulation is a sort of consistent likelihood dissemination for a genuine esteemed irregular variable.

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Write each product or quotient in scientific notation. Round to the appropriate number of significant digits.

(1.6 × 10²) (4.0 × 10³)

Answers

The product of (1.6 × 10²) and (4.0 × 10³) can be written in scientific notation as 6.4 × 10⁵.

To multiply numbers in scientific notation, we multiply the coefficients and add the exponents.

The given numbers are (1.6 × 10²) and (4.0 × 10³).

Multiplying the coefficients gives 1.6 × 4.0 = 6.4.

Adding the exponents gives 10² + 10³ = 10⁵.

Therefore, the product of (1.6 × 10²) and (4.0 × 10³) can be written in scientific notation as 6.4 × 10⁵.

In scientific notation, the coefficient is rounded to the appropriate number of significant digits, which in this case is 2 digits (1.6 and 4.0), and the exponent represents the power of 10 that accompanies the coefficient.

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Which expressions represent a perfect square monomial and its square root? check all that apply.

Answers

These are the expressions that represent a perfect square monomial and its square root. A perfect square monomial is a term that can be written as the square of a binomial.

The expressions that represent a perfect square monomial and its square root are: [tex](x^2)[/tex] - This is a perfect square monomial because it can be written as the square of the binomial (x).
[tex](4y^2)[/tex] - This is a perfect square monomial because it can be written as the square of the binomial (2y).

The square root of a perfect square monomial is the binomial that was squared to get the monomial. So, the square roots of the above expressions are:

1.[tex]√(x^2) = x[/tex]

2. [tex]√(4y^2) = 2y[/tex]

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Expressions that represent perfect square monomials and their square roots include [tex]x^2[/tex] and its square root x, as well as [tex]4y^4[/tex] and its square root [tex]2y^2[/tex].

A perfect square monomial is an expression that can be written as the square of a binomial. To determine if an expression represents a perfect square monomial, we can look for the following characteristics:

1. The expression must have only one variable.
2. The exponent of the variable must be even.
3. The coefficient must be a perfect square.

Let's consider some examples:

1. [tex]x^2[/tex]: This is a perfect square monomial because it satisfies all the conditions. The variable x has an even exponent of 2, and the coefficient 1 is a perfect square.

2. [tex]4y^4[/tex]: This is also a perfect square monomial. The variable y has an even exponent of 4, and the coefficient 4 is a perfect square.

3. [tex]3x^3[/tex]: This expression does not represent a perfect square monomial because the variable x has an odd exponent of 3.

To find the square root of a perfect square monomial, we take the square root of both the variable and the coefficient.

For example, the square root of [tex]x^2[/tex] is x, and the square root of [tex]4y^4[/tex] is [tex]2y^2[/tex].

In conclusion, expressions that represent perfect square monomials and their square roots include [tex]x^2[/tex] and its square root x, as well as [tex]4y^4[/tex] and its square root [tex]2y^2[/tex].

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Roberto is designing a logo for a friend's coffee shop according to the design. at the right, where each chord is equal in length. What is the measure of each are and the length of each chord?

Answers

The measure of each area is x² and the length of each chord is 2x√2.

To find the measure of each area and the length of each chord according to the given design, follow the steps given below:

Step 1: Draw a perpendicular line from the centre of the circle to the chord. The perpendicular line bisects the chord into two halves. This will form a right triangle. The distance from the center of the circle to the chord is the radius (r).

Step 2: The perpendicular line also bisects the chord into two parts. Let "x" be the length of each half of the chord. This means the length of the chord is 2x.

Step 3: Use the Pythagorean theorem to find the length of the radius. The hypotenuse is the radius (r) and the two legs are x. Therefore,r² = x² + x²r² = 2x²r = √(2x²) r = x√2

Step 4: Use the Pythagorean theorem to find the length of the perpendicular line. The hypotenuse is the radius (r) and the two legs are x. Therefore, r² = x² + h²

Since,the perpendicular line bisects the chord, the perpendicular line (h) is also half the length of the chord. Therefore, h = x

Step 5: Substitute h in the equation for r²:r² = x² + h²r² = x² + x²r² = 2x²r = x√2

Area of each triangle = 1/2 * base * height

Area of shaded area = 2 * Area of each triangle = 2 * 1/2 * x * x = x²

Length of each chord = 2x = 2 * 2r/√2 = 2r * √2 = x√2 * 2 = 2x√2

Therefore, the measure of each area is x² and the length of each chord is 2x√2.

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Determine whether the stated conclusion is valid based on the given information. If not, write invalid. Explain your reasoning.Given: If 75% of the prom tickets are sold, the prom will be held at the country club. 75% of the prom tickets were sold.

Conclusion: The prom will be held at the country club.

Answers

Based on the given information, the conclusion that the prom will be held at the country club is valid.

To determine the validity of the conclusion, we need to examine whether the given information supports the conclusion.

The given information states that if 75% of the prom tickets are sold, the prom will be held at the country club.

It is also mentioned that 75% of the prom tickets were sold.

Based on this information, we can conclude that the prom will be held at the country club because the condition for holding the prom at the country club (i.e., selling 75% of the tickets) has been met.

This conclusion is valid because it directly follows from the given information.

If the stated condition is true, meaning 75% of the prom tickets were indeed sold, then it logically implies that the prom will be held at the country club.

There are no conflicting statements or missing information that would invalidate this conclusion.

Therefore, based on the given information, the conclusion that the prom will be held at the country club is valid.

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Rewrite each equation in vertex form. y= 2x²-8 x+1 .

Answers

The equation y = 2x² - 8x + 1 can be rewritten in vertex form as y = 2(x - 2)² - 7. The vertex of the parabola represented by this equation is located at the point (2, -7).

To rewrite the equation y = 2x² - 8x + 1 in vertex form, we need to complete the square. The vertex form of a quadratic equation is given by:

y = a(x - h)² + k

where (h, k) represents the coordinates of the vertex.

Let's go through the process step by step:

Start with the given equation: y = 2x² - 8x + 1

Factor out the common factor from the first two terms (the coefficient of x²):

y = 2(x² - 4x) + 1

To complete the square, take half of the coefficient of x (-4) and square it: (-4/2)² = (-2)² = 4

Add and subtract the value obtained in step 3 inside the parentheses, but since we are adding 4 and subtracting 4, the overall equation remains unchanged:

y = 2(x² - 4x + 4 - 4) + 1

Group the first three terms inside the parentheses:

y = 2((x - 2)² - 4) + 1

Expand the equation inside the parentheses:

y = 2(x - 2)² - 8 + 1

Simplify the equation:

y = 2(x - 2)² - 7

The equation y = 2x² - 8x + 1 can be rewritten in vertex form as y = 2(x - 2)² - 7. The vertex of the parabola represented by this equation is located at the point (2, -7).

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When using the ANOVA: Two-Factor with Replication data analysis in Excel, which source of variation is the Sample?

Answers

When using the ANOVA: Two-Factor with Replication data analysis in Excel, the source of variation that corresponds to the sample is called the "factor."

In this type of analysis, the factor represents the different levels or categories of the independent variable being studied.

It is the variable that is manipulated or controlled by the researcher in order to observe its effect on the dependent variable.

The factor could be a treatment, condition, group, or any other categorical variable that is being studied.

By analyzing the variation among the levels of the factor, we can determine if there are any significant differences or relationships between the independent and dependent variables.

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The height a ball bounces is less than the height of the previous bounce due to friction. The heights of the bounces form a geometric sequence. Suppose a ball is dropped from one meter and rebounds to 95% of the height of the previous bounce. What is the total distance traveled by the ball when it comes to rest?

c. What formula should you use to calculate the total distance?

Answers

To find the total distance, we need to determine the value of n.

To calculate the total distance traveled by the ball when it comes to rest, we need to consider that each bounce of the ball covers both the upward and downward distances.

In a geometric sequence, the terms are multiplied by a common ratio. In this case, since the ball rebounds to 95% (or 0.95) of the previous height, the common ratio is 0.95.

The formula to calculate the total distance traveled by the ball when it comes to rest in a geometric sequence is given by:

Total Distance = Initial Distance + (Initial Distance × Common Ratio) + (Initial Distance × Common Ratio²) + ...

The sum of an infinite geometric series can be calculated using the formula:

Sum = Initial Term / (1 - Common Ratio)

However, in this case, since the ball comes to rest, the series is not infinite but finite. To find the total distance, we need to sum the geometric sequence until the ball reaches its resting point (when the bounce height becomes negligible).

Therefore, the formula to calculate the total distance for a finite geometric sequence would be:

Total Distance = Initial Distance × (1 + Common Ratio + Common Ratio² + ... + Common Ratio^(n-1))

Where n is the number of bounces until the ball comes to rest (including the initial drop).

So, to find the total distance, we need to determine the value of n.

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If the failure rate of the second calculator is the same and independent of the first, what is the probability of both calculators failing?

Answers

Let's denote this probability as p, where p represents the probability of a single calculator failing. Therefore, the probability of both calculators failing is given by [tex]p^2[/tex].

If the failure rate of the second calculator is the same and independent of the first, we can assume that the probability of failure for each calculator remains constant. To determine the probability of both calculators failing, we need to multiply the probabilities of each calculator failing independently. Since the events are independent, we can multiply the individual probabilities together.

Probability of both calculators failing = Probability of first calculator failing * Probability of second calculator failing

= p * p

= [tex]p^2[/tex]

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There are 3 ! , or 6, arrangements of 3 objects. Consider the number of clockwise arrangements possible for objects placed in a loop, without a beginning or end. ABC, BCA , and CAB are all parts of one possible clockwise loop arrangement of the letters A, B , and C .

a. Find the number of clockwise loop arrangements possible for letters A, B, and C.

Answers

Clockwise loop arrangements are arrangements of objects in a loop without a beginning or end. To find the number of clockwise loop arrangements, we can use the formula for circular permutations, which is (n-1)!.

To find the number of clockwise loop arrangements, we need to consider that the objects (letters) are arranged in a loop without a specific beginning or end. This means that each clockwise loop arrangement is considered the same if we rotate it.

We can use the formula for circular permutations, which is given by (n-1)!, where n is the number of objects (letters) to be arranged.

In this case, there are 3 objects (letters A, B, and C), so the number of clockwise loop arrangements possible is (3-1)! = 2!.

Calculating 2! = 2 x 1 = 2, we find that there are 2 clockwise loop arrangements possible for the letters A, B, and C.

Therefore, The number of clockwise loop arrangements possible for letters A, B, and C is 2.

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Choose values for horizontal and vertical translation to place triangle abc on top of triangle def

Answers

To place triangle ABC on top of triangle DEF, we need to choose values for horizontal and vertical translation. By applying the chosen values for horizontal and vertical translation, triangle ABC can be accurately placed on top of triangle DEF, aligning their corresponding vertices and edges

In order to align triangle ABC on top of triangle DEF, we can use horizontal and vertical translation to move triangle ABC to the desired position. Horizontal translation refers to shifting the triangle left or right, while vertical translation involves moving the triangle up or down.

To determine the values for horizontal and vertical translation, we need to consider the relative positions of the vertices of both triangles. By analyzing the coordinates of corresponding vertices in both triangles, we can calculate the horizontal and vertical distances between them.

Once we have calculated the horizontal and vertical distances, we can choose appropriate values for horizontal and vertical translation that will move triangle ABC to coincide with triangle DEF. These values will depend on the specific coordinates and sizes of the triangles involved.

By applying the chosen values for horizontal and vertical translation, triangle ABC can be accurately placed on top of triangle DEF, aligning their corresponding vertices and edges.

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regression statistics multiple r a r square b adjusted r square 0.923912 standard error observations 20 anova df ss ms f significance f regression c 72744.33 f h 1.01e-11 residual d 5651.002 g totale 78395.33 coefficients standard error t stat p-value lower 95% upper 95% lower 95.0% upper 95.0% intercept -64.0632 11.88741 i 4.03e-05 -89.0377 -39.0886 -89.0377 -39.0886 weight 14.91747 0.979991 j 1.01e-11 12.85859 16.97636 12.85859 16.97636

Answers

The regression analysis indicates a strong positive correlation (multiple R = 0.923912) and a high coefficient of determination (R-square = 0.8536), suggesting a good fit between the variables.

The regression model is statistically significant (F = 72744.33, p < 0.01), with the weight variable having a significant effect (p < 0.01) on the dependent variable. The intercept has an estimated value of -64.0632, and the weight variable has an estimated coefficient of 14.91747. The provided regression statistics offer insights into the relationship between the variables in the model.

The high multiple R value of 0.923912 indicates a strong positive correlation between the independent and dependent variables. The R-square value of 0.8536 suggests that approximately 85% of the variation in the dependent variable can be explained by the independent variables in the model.

The ANOVA table shows that the regression model is statistically significant, with an F-value of 72744.33 and a small p-value of 1.01e-11, indicating a highly significant relationship between the variables. The standard error of the regression (20) represents the average deviation of the observed values from the predicted values.

The coefficients table presents the estimated coefficients for the intercept and the weight variable. The intercept has an estimated value of -64.0632, indicating the expected value of the dependent variable when the weight variable is zero. The weight variable has an estimated coefficient of 14.91747, suggesting that a unit increase in the weight variable leads to an average increase of approximately 14.92 in the dependent variable.

The t-statistics and p-values indicate the significance of these coefficients, and the confidence intervals provide ranges within which the true values of the coefficients are likely to fall.

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Simplify each expression. Rationalize all denominators. Assume that all variables are positive. √6 x⁴y / √6x² y³

Answers

The simplified expression, with rationalized denominators, is (x²)/(y²) assuming that all variables are positive.

To simplify the given expression and rationalize the denominator, we need to apply the properties of radicals. We have the expression (√6 x⁴y) / (√6x² y³).

First, let's simplify the numerator and denominator separately:

Numerator: √6 x⁴y

Since the denominator has a square root of 6, we can simplify the numerator by dividing the exponent of x by 2:

√6 x⁴y = √6 (x²)²y = x²√6y

Denominator: √6x² y³

The denominator already has a square root of 6, so we just need to rationalize the denominator by multiplying the numerator and denominator by the conjugate of the denominator:

√6x² y³ = √6x² y³ * (√6x² y³) / (√6x² y³)

Simplifying this, we get:

√6x² y³ = (√6x² y³ * √6x² y³) / (6x² y³) = 6x⁴y⁶ / (6x² y³) = x²y³

Now, we can rewrite the original expression with the simplified numerator and denominator:

(x²√6y) / (x²y³)

Canceling out the x² term in the numerator and denominator, we obtain:

(√6y) / y³ = √6/y²

The simplified expression with rationalized denominators is (x²)/(y²).

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(an intermediate algebra review exercise) use polynomial long division to perform the indicated division. write the polynomial in the form p(x)

Answers

Required polynomial in the form p(x) is: [tex]\[f(x)=\boxed{x^3-2x^2+4x-3+\frac{5}{x-1}}\][/tex]

We are given the following polynomial: [tex]\[f(x)=\frac{x^4-3x^3+2x^2-7x-2}{x-1}\][/tex]

To perform polynomial long division we divide the highest degree terms of the numerator and denominator. Then we write the quotient and remainder on top of each other and multiply the denominator of the original problem with the quotient to check if the answer is correct.

Let's start with the highest degree terms.

[tex]\[\begin{array}{r r c r r} &x^3 &-2x^2 &+4x &-3\\ \cline{2-5} x-1 & x^4 &-3x^3&+2x^2&-7x&-2 \\ & \underline{x^4} &-\underline{x^3} & & & \\ & & -2x^3 & +2x^2 & & \\ & & \underline{-2x^3} & +\underline{2x^2} & & \\ & & & 0x^2 & -7x & \\ & & & & -7x & +7 \\ & & & & \underline{-7x} & +\underline{7} \\ & & & & & \boxed{5} \\ \end{array}\][/tex]

Therefore, the required polynomial in the form p(x) is:[tex]\[f(x)=\boxed{x^3-2x^2+4x-3+\frac{5}{x-1}}\][/tex]

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A data Blank______ is the common term for the representation of multidimensional data. Multiple choice question. square lake cube point

Answers

The common term for the representation of multi-dimensional data is a cube. Hence, the correct answer, in this case, is cube.

In the given multiple-choice question, the options are square, lake, cube, and point. Among these options, the term that is commonly used to represent multi-dimensional data is a "cube."

A cube is a three-dimensional shape with six square faces of equal size. It represents a multidimensional space where each side of the cube corresponds to a different dimension. In the context of data representation, a cube is often used to visualize and analyze multidimensional data sets.

The cube structure allows for the organization and representation of data across multiple dimensions. Each face of the cube represents a specific attribute or dimension, and the intersection of these attributes defines a data point within the multidimensional space.

Therefore, the correct answer in this case is "cube" as it is the common term used to represent multidimensional data.

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Factor Each Expression. X-3 X+2 . (2024)

FAQs

How do you factor an expression? ›

How can we Factorize an expression?
  1. Step 1: Find the prime factors of the given expression.
  2. Step 2: Encircle the common factors and find the GCF.
  3. Step 3: Write each term of the expression as a product of the GCF.
  4. and the remaining factor.
  5. Step 4: Use the distributive property and simplify the expression.

What is the factor x squared plus 3x 2? ›

Therefore, x2+3x+2=(x+1)(x+2)

What is the factorization of x 2 3x? ›

Answer and Explanation:

In this case, the common term of x^2 and 3x is x, as x x' x is x^2 and 3 x x is equal to 3x. So we will factor x to simplify: x^2 + 3x. x(x + 3)

How to do factoring in math? ›

The Solve by Factoring process will require four major steps:
  1. Move all terms to one side of the equation, usually the left, using addition or subtraction.
  2. Factor the equation completely.
  3. Set each factor equal to zero, and solve.
  4. List each solution from Step 3 as a solution to the original equation.

What is the formula for factor? ›

This expresses the number of factors formula as, (a + 1) × (b + 1), where a, and b are the exponents obtained after the prime factorization of the given number. For example, let us find the total number of factors of the number 12. The prime factorization of 12 = 2 × 2 × 3.

What is X factor in math? ›

In math, an X factor is "an unknown quantity that only becomes known after following a prescribed process." Definitions of X factor.

How can you factor x 2? ›

However, x^2 is already a simplified expression and cannot be factored further. It is the simplest form of the term x raised to the power of 2, and it represents x multiplied by itself, which is x * x. So, x^2 is a monomial, and it's not possible to factor it into two or more simpler terms.

How do you solve factorization expressions? ›

Factorising
  1. To factorise an expression fully, take out the highest common factor (HCF) of all the terms. ...
  2. Factorise 6 x + 9 .
  3. To factorise this expression, look for the HCF of and 9 which is 3. ...
  4. The HCF of 6 x + 9 is 3. ...
  5. 6 x ÷ 3 = 2 x and.
  6. This gives:
  7. 3 ( 2 x + 3 ) = 3 × 2 x + 3 × = 6 x + 9.

What is the factor of 3x 2 6x? ›

The factors form of 3x2−6x is 3x. (x−2) Was this answer helpful?

How do we Factorise X? ›

In this method, we simply take out the common factors among each term of the given expression. Example: Factorise 3x + 9. Since, 3 is the common factor for both the terms 3x and 9, thus taking 3 as a common factor we get; 3x + 9 = 3(x+3).

How to solve x 3 2 2x? ›

  1. Given: (x+3/2=2x.
  2. To Find: Solve the equation.
  3. Solution: We know that, (x+3) / 2 = 2x. By cross multiplication, this can be written as the following, x + 3 = 2(2x) or, x + 3 = 4x. or, 3 = 3x. or, x = 3/3 = 1.
Aug 7, 2020

What is a factored form expression? ›

The function can also be defined by the equivalent expression . When the quadratic expression is a product of two factors where each one is a linear expression, this is called the factored form. An expression in factored form can be rewritten in standard form by expanding it, which means multiplying out the factors.

What are the factors of x2 + 2x + 3? ›

Factoring polynomials using the method of splitting the middle term: Here two numbers 'a' and 'b' are a + b = 2 and ab = 3. Therefore, x + 3 and x - 1 are the factors of the expression x2 + 2x - 3.

What are the steps in factoring? ›

Step 1: Group the first two terms together and then the last two terms together. Step 2: Factor out a GCF from each separate binomial. Step 3: Factor out the common binomial. Note that if we multiply our answer out, we do get the original polynomial.

How do you factor each expression using a GCF? ›

In order to factor the expression using the GCF of the coefficients, simply divide the algebraic expression by the GCF.

How to factor an expression with no GCF? ›

Answer and Explanation:

If an expression has no GCF, then it cannot be factored without fractions occurring in the expression. The only number that can divide all terms evenly in this case is one.

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