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Mathematics, 13.05.2021 18:50 lumikuz123
the reflecting dish of a parabola microphone has a cross-section in the shape of a parabola. the microphone itself is placed on the focus of the parabola. if the parabola is 24 inches wide and 9 inches deep, how far from the vertex should the vertex be placed?
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the reflecting dish of a parabola microphone has a cross-section in the shape of a parabola. the mic...
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