Find the area of the figure.
A. 56 yd2
B. 84 yd2
C. 112 yd2
D. 48 yd2
Answer: A
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Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by x = 2tan 
, x = 0, y = - 
A. 28? - 7?2
B. 28 - 7?
C. 7? + 7?2
D. 14? - 
?2
Solve the problem.Don James wants to invest $65,000 to earn $4650 per year. He can invest in 
bonds paying 
per year or in a Certificate of Deposit (CD) paying 
per year. How much money should be invested in each to realize exactly $4650 in interest per year?
A. $28,000 in B-rated bonds and $37,000 in a CD B. $37,000 in B-rated bonds and $28,000 in a CD C. $36,000 in B-rated bonds and $29,000 in a CD D. $29,000 in B-rated bonds and $36,000 in a CD
Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axis
A. 12? B. 4? C. 16? D. 8?
Solve the problem.A video camera is set up 110 feet at a right angle to a straight quarter-mile race track, as shown in the figure. The starting line is to the left, and the finish line is to the right. Through what angle must the camera rotate to film the entire race?
A. 148° B. 157° C. 85° D. 167°