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Mathematics 17 Online
OpenStudy (anonymous):

A satellite dish has a parabolic cross section with a focus that is 3 feet from the vertex. The cross section is placed on a coordinate plane with the vertex at (0,0) and opening to the right. a. If the satellite dish is 4 feet deep, find the diameter of the satellite dish at its opening b. if the opening of the satellite dish has a circumference of 16(pi) how deep is the dish?

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