A cube has a volume of 512 cubic inches. What is the length of one side of the cube?
A. 8 inches
B. 64 inches
C. 128 inches
D. 16 inches
If (8)x2 = 128, then x is __________.
A. either a positive or negative number
B. a negative number
C. a prime number
D. a positive number
Given the diagram, what is the perimeter of the quadrilateral?
A. 14616
B. 28
C. 517
D. 58
There are 12 liters of a mixture of acetone in alcohol that is 331/3% acetone.
How many liters of alcohol must be added to the mixture to reduce it to a mixture containing 25% acetone?
A. 1
B. 2
C. 4 D. 6
Which of the following means 3n + 7 = 16?
A. 7 more than 3 times a number is 16
B. 3 more than 7 times a number is 16
C. 7 less than 3 times a number is 16
D. 10 times a number is 16
If x = 8, what's the value of y in the equation:
y = (x2 ÷ 4) - 2?
A. 14
B. 16
C. 18
D. 20
A square box has a volume of 64 cubic inches.
What's its perimeter?
A. 8 inches
B. 16 inches
C. 64 inches
D. 32 inches
A circle measures 12 feet in diameter.
What's its area to the nearest foot?
A. 452
B. 24
C. 113
D. 48