Solve the problem.A field microphone used at a soccer game has a parabolic cross section and is 32 inches wide at the opening. The focus is 16 inches from the vertex. Find the depth of the microphone.
A. 64.00 in.
B. 4.00 in.
C. 1.78 in.
D. 16.00 in.
Answer: B
Mathematics
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