Mathematics, 20.03.2020 19:11 jrfranckowiak
Broadcasters use a parabolic microphone on football sidelines to pick up field audio for broadcasting purposes. A certain parabolic microphone has a reflector dish with a diameter of 12 inches and a depth of 4 inches. If the receiver of the microphone is located at the focus of the reflector dish, how far from the vertex should the receiver be positioned?
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Broadcasters use a parabolic microphone on football sidelines to pick up field audio for broadcastin...
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