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

Mathematics

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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.

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Write a general term an for the sequence. Assume that n begins with 1., . . .

A. an = 
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C. an = 
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