Mathematics, 15.05.2021 21:40 jaffeisabel

4. The reflecting dish of a parabolic 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 microphone be placed?

1. 6 inches
2. 8 inches
3. 16 inches
4. 4 inches

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4. The reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. Th...

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