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OpenStudy (anonymous):
A designer proposes a parabolic satellite dish 1 feet in diameter and 3 inches deep. a. What is the equation for the cross section of the parabolic dish? Consider that it has vertex (0, 0). b. What is the focal length (the distance between the vertex and the focal point)? c. What is the diameter of the dish at the focal point?
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OpenStudy (anonymous):
what does it mean by the diameter at the focal point?
OpenStudy (anonymous):
thats y am lost
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