Math Test Set 11

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1. If y varies inversely with x, and y = 40 when x = 16, find x when y = -5.

A.127

B.128

C.-128

D.-127

Question 1 of 10

2. \(\frac{x^{2}+3}{x(x+5)}\)

Find the values that make this rational expression undefined.

A.x = 0 or −5

B.x = 0 or 7

C.x = 0 or 5

D.x = 2 or 4

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

Math- Equations

4. Solve the given equation for x

12x − 15 = −3

A.1

B.2

C.-1

D.-2

Question 4 of 10

Math-Inequalities

5. Solve the given inequality.

−10x − 4 ≤ 18

A.\(-\frac{11}{5}\)

B.\(-\frac{5}{11}\)

C.\(1\frac{5}{6}\)

D.\(-1\frac{5}{6}\)

Question 5 of 10

Math-Combining Like Terms

6. Combine like terms by first using the distributive property.

\(17xy^{2}+ 18xy^{2} + 20xy^{2}\)

A.\(55xy^{2} \)

B.\(-55xy^{2} \)

C.\(5xy^{2} \)

D.\(50xy^{2} \)

Question 6 of 10

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

\(−14x^{3} + 16xy + 5x^{3} + 8xy\)

A.\(-9x^{3} + 24xy \)

B.\(-10x^{3} + 25xy\)

C.\(-9x^{3} + 24xy\)

D.\(9x^{3} + 24xy\)

Question 7 of 10

Math-Solution of equations

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

6x + y = 8
4x + 2y = 0

A.(2,-4)

B.-(2,-4)

C.(2,4)

D.8

Question 8 of 10

Math-Percent of number

9. What number is 18.4% of 125?

A.23

B.24

C.11.5

D.46

Question 9 of 10

Math-Evaluate expression

10. Evaluate the expression at the given values of x and y.

\(-5x^{2} + 2y^{2}\) at \(x = 4\) and \(y = 2\)

A.-72

B.72

C.-35

D.78

Question 10 of 10

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