Math Test Set 12 - My Career Tools

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1. Suppose x varies inversely as y and x = 16 when y = 5. Find x when y = 20.

A.4

B.32

C.20

D.1

Question 1 of 10

2. Factor the expression. \(16r^{2} − 56r + 49\)

A.\((8r − 7)(2r − 7)\)

B.\((16r − 7)(r − 7)\)

C.\((4r − 49)(4r − 1)\)

D.\((4r − 7)(4r − 7) = (4r − 7)^{2}\)

Question 2 of 10

3. Factor. \(y^{2} - 36\)

A.(y − 6)(y − 6)

B.(y + 6)(y − 6)

C.(y + 6)(y + 6)

D.−(y + 6)(y + 6)

Question 3 of 10

Math-Exponents

4. Simplify the given exponential expression.

\((uw)^{5}\)

A.\(u^{5}w^{5} \)

B.\(5uw^{5} \)

C.\(u^{4}w^{6} \)

D.\(-5uw^{5} \)

Question 4 of 10

5. Simplify the given exponential expression.

\(4^{n} \cdot 4^{8n+3}\)

A.\(4^{9n+3} \)

B.\(-4^{9n+3} \)

C.\(4^{9n-3} \)

D.\(-4^{9n-3} \)

Question 5 of 10

Math- Equations

6. Solve the equation.

2(6 − 2x) − (4x − 9) = 9

A.\(\frac{3}{2}\)

B.\(\frac{2}{3}\)

C.21

D.\(\frac{1}{21}\)

Question 6 of 10

7. Solve the equation.

−5(−9x + 7) + 7 = −(−9x − 8)

A.1

B.0

C.-1

D.8

Question 7 of 10

Math-Evaluate expression

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

−6x − 6 at x = 3

A.-24

B.24

C.22

D.-22

Question 8 of 10

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

|x| − |y| at x = 0 and y = 2

A.−2

B.2

C.0

D.1

Question 9 of 10

Math-Percent to decimal

10. Convert the given percent to a decimal.

36.5%

A.0.365

B.36.5

C.0.0365

D.3.65

Question 10 of 10