Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number. 3
3
A. 128
B. 8
C. 10
D. 10
Answer: C
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = - 4 and x = 4. The cross sections perpendicular to the x-axis are circular disks whose diameters run from the parabola y = x2 to the parabola y = 32 - x2.
A. 
?
B. 
?
C. 
?
D. 
?
Provide an appropriate response.Find the area of a circle with a radius of 12 cm (round to the nearest hundredth).
What will be an ideal response?
Rationalize the denominator. Assume that all variables represent positive real numbers and that the denominator is not zero.
A. 
B. 
C. 
D. -1
A formula is given along with the values of all but one of the variables in the formula. Find the value of the variable not given. Round to the nearest hundredth where necessary.V = 
?r3; r = 4, ? = 3.14
A. V = 85.33 B. V = 803.85 C. V = 267.95 D. V = 66.99