Math Practice Test Set 4 - My Career Tools

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1. Factor thew expression \(x^{2} - 144\)

A.(x + 12)(x + 12)

B.\((x + 12)^{2}\)

C.(x - 12) (x + 12)

D.\((x - 12)^{2}\)

Question 1 of 10

Math-Solution of equations

2. Use the substitution method to solve each of the following systems.

6x − 8y = 24
y = 15 + 3x

A.(-8,-9)

B.-(-8,-9)

C.(8,-9)

D.(-16,18)

Question 2 of 10

3. 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 3 of 10

Math-Slope

4. Use the substitution method to solve each of the following systems.

−7x + 7y = 63

y = 6 − 2x

A.(-1, 8)

B.-(1,8)

C.(1.6)

D.(2,16)

Question 4 of 10

Math-Percent to decimal

5. Convert the given percent to a decimal.

124%

A.1.24

B.12.4

C.0.124

D.124

Question 5 of 10

Math-Evaluate expression

6. Simplify the given expression.

−12 + 6(−4)

A.-36

B.36

C.-24

D.24

Question 6 of 10

Math-Combining Like Terms

7. Combine like terms by first rearranging the terms, then using the distributive property to factor out the common variable part, and then simplifying.

−8 + 17n + 10 + 8n

A.2 + 25n

B.2n + 25

C.2 + 30n

D.4 + 25n

Question 7 of 10

Math-Exponents

8. Simplify the given exponential expression.

\(2^{5} \cdot 2^{3}\)

A.\(2^{8} \)

B.\(-2^{8} \)

C.\(2^{1} \)

D.\(1^{2} \)

Question 8 of 10

9. Simplify the given exponential expression.

\((−2y)^{3}\)

A.\(-8y^{3} \)

B.\(8y^{3} \)

C.\(-7y^{3} \)

D.\(-16y^{3} \)

Question 9 of 10

Math-Word problems

10. Three more than eight times an unknown number is −29. Find the unknown number.

A.-4

B.4

C.5

D.-5

Question 10 of 10