The eccentricity is given of a conic section with one focus at the origin, along with the directrix corresponding to that focus. Find a polar equation for the conic section. e = 
, x = 3
A. r = 
B. r = 
C. r = 
D. r = 
Answer: A
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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. 9? B. 6? C. 12? D. 15?
Solve the problem.A 15-foot pole is supported by two wires that extend from the top of the pole to points that are each 5 feet from the base of the pole. Find the total length of the two wires.
A. 5
ft
B. 10
ft
C. 40 ft
D. 500 ft
Solve the problem.The probability that an assembly line works correctly depends on whether the line worked correctly the last time. Find the probability that the line will work in the long run. Round your answer to the nearest thousandth.WorksDoes not 
A. 0.667 B. 0.700 C. 0.665 D. 0.333
Write a general term an for the sequence. Assume that n begins with 1.
, 
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 