Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = ?/6 to x = ?/2. The cross sections perpendicular to the x-axis are circular disks with diameters running from the curve 
to the curve 
A. 
- 
B. (
- 1) ? + 
C. (2
- 2) ? - 
D. 
- 
Answer: D
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Solve the problem.Doctors predict that by administering a vaccine, the number of new cases of a certain childhood disease will decrease by half each year. If 1100 people were afflicted with the disease in 2010, estimate the number of new cases in 2015. (Round to the nearest whole number, if necessary.)
A. 17 new cases B. 69 new cases C. 138 new cases D. 34 new cases
Solve the problem.The manufacturer of a CD player has found that the revenue R (in dollars) is 
when the unit price is p dollars. If the manufacturer sets the price p to maximize revenue, what is the maximum revenue to the nearest whole dollar?
A. $171,610 B. $343,220 C. $686,440 D. $85,805
Use the given graph to find the x-intercepts.
A. -3, -1 B. -1, 3 C. -3, 1 D. 1, 3
Evaluate.-94
A. 6561 B. -36 C. -6561 D. 36