Question 1

The equation for the volume of a sphere is $\frac{ 4 }{ 3 } \pi r^3$. What is the volume of a steel ball with a radius of 3 inches? Leave in terms of pi.

Accepted Answer

36$\pi$ inches cubed

Answer

18$\pi$ inches cubed

Answer

24$\pi$ inches cubed

Answer

64$\pi$ inches cubed

Question 2

True of False: The set of negative integers is closed under addition.

Accepted Answer

True

Answer

False

Question 3

Simplify: $x^2 y^4 x^2 y^3$

Accepted Answer

$x^4 y^7$

Answer

$2x^42 y^7$

Answer

$x^4 y^{12}$

Answer

$2x^42 y^{12}$

Question 4

What is 7- (-15)?

Accepted Answer

22

Answer

-22

Answer

8

Answer

-8

Question 5

True of False: Absolute value is the distance a number is from zero on the number line and can never be negative.

Accepted Answer

True

Answer

False

Question 6

Simplify: $\frac{ 4+5 }{ 3 } -$($2 \cdot 3^2 - 4$)

Accepted Answer

-11

Answer

28

Answer

-17

Answer

4

Question 7

What is the additive inverse of $\frac{ 5 }{ 2 }$?

Accepted Answer

-$\frac{ 5 }{ 2 }$

Answer

$\frac{ 2 }{ 5}$

Answer

$\frac{ 5 }{ 2 }$

Answer

-$\frac{ 2 }{ 5 }$

Question 8

Death valley is 282 feet below sea level. If Jesse is 6 feet tall, what is the altitude at the top of Jesse's head?

Accepted Answer

276 feet below sea level

Answer

276 feet above sea level

Answer

288 feet above sea level

Answer

288 feet below sea level

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