Math Practice Test Set 4

Each question has a few answer choices. Choose the best answer for each question. At the end of the quiz, you will see your results.

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1. \(\frac{x-y}{x^{2}-2xy+y^{2}}\)

Simplify.

 

A.x + y

B.xy

C.\(\frac{1}{x} - y\)

D.x - y

Question 1 of 10

2. This equation represents a direct variation.

2x = y

A.True

B.False

Question 2 of 10

3. Factor: \(b^{2} − b − 20\)

A.(2b − 5)(b + 4)

B.(b − 5)(b + 4)

C.(b − 10)(b + 2)

D.(b + 5)(b − 4)

Question 3 of 10

4. Given the following set of numbers {1,2,3,4,5,6,7,8,9,10} what is the probability of choosing an even number, given that a multiple of 3 is chosen?

A.\(\frac{1}{2}\)

B.\(\frac{1}{3}\)

C.0

D.\(\frac{3}{4}\)

Question 4 of 10

Math-Percent of number

5. 30.8 is what percent of 40?

A.77

B.75

C.35

D.145

Question 5 of 10

Math-Percent to decimal

6. Convert the given decimal to a percent.

1.681

A.168.1%

B.1.681%

C.16.81%

D.0.1681%

Question 6 of 10

Math-Distributive Property

7. Use the distributive property to expand the given expression.

\(9(−2b^{2} + 2b + 9)\)

A.\(−18b^{2} + 18b + 81 \)

B.\(18b^{2} + 18b + 81 \)

C.\(-18b^{2} - 18b + 81 \)

D.\(-18b^{2} + 18b + 21 \)

Question 7 of 10

Math-Evaluate expression

8. Evaluate the expression at the given value of x.

\(−3x^{2}− 6x + 3\) at \(x = 7 \)

A.-186

B.186

C.-198

D.198

Question 8 of 10

Math- Equations

9. Solve the equation.

12x + 9 = 4x + 7

A.\(-\frac{1}{4}\)

B.\(\frac{1}{4}\)

C.16

D.-16

Question 9 of 10

Math-Solution of equations

10. Use the elimination method to solve each of the following systems.

16x − 16y = −256
−8x + 8y = 128

A.Infinite number of solutions

B.no solutions

C.0

D.1

Question 10 of 10

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