Math Test Set 11 - My Career Tools

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1. Factor. \(x^{2} − 81\)

A.(x + 9)(x − 9)

B.(x + 9)(x + 9)

C.(x − 9)(x − 9)

D.Unfactorable

Question 1 of 10

2. The relation graphed below is a function.

A.True

B.False

Question 2 of 10

3. 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 3 of 10

4. Given the following set of numbers {1,1,1,1,2,3,4,5,5,5,5,6,7,8,8,8,8,8,9, 10} what is the probability of choosing a prime number, given that a factor of 36 is chosen?

A.\(\frac{7}{20}\)

B.\(\frac{2}{5}\)

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

D.\(\frac{2}{9}\)

Question 4 of 10

Math-Solution of equations

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

9x + 4y = −4
−7x − 9y = 3

A.\((\frac{-24}{53}, \frac{1}{53}) \)

B.\((\frac{24}{53}, \frac{1}{53}) \)

C.\((\frac{24}{53}, \frac{-1}{53}) \)

D.\((\frac{-25}{50}, \frac{1}{50}) \)

Question 5 of 10

6. Determine k so that the point (−1, k) is a solution of y = −5x + 3.

A.k = 8

B.k = 7

C.k =16

D.k = 4

Question 6 of 10

Math-Percent to decimal

7. Convert the given percent to a decimal.

28%

A.0.28

B.2.8

C.0.028

D.0.0028

Question 7 of 10

8. Convert the given decimal to a percent.

0.85

A.85%

B.8.5%

C.0.85%

D.0.085%

Question 8 of 10

Math-Functions

9. Given f(x) = 3x⁴− 5x² + 8, evaluate f(−1).

A.6

B.-6

C.5

D.12

Question 9 of 10

Math- Equations

10. Solve the equation.

−7(9x − 6) = 7(5x + 7) – 7

A.0

B.1

C.-1

D.2

Question 10 of 10