Question
A searchlight is shaped like a paraboloid of revolution. If the light source
located 4 feet from the base along the axis of symmetry and the opening is 22 feet across, how deep should the searchlight be?
The searchlight should be feet deep.
(Type an exact answer in simplified form.)

Image Transcription

A searchlight is shaped like a paraboloid of revolution. If the light source located 4 feet from the base along the axis of symmetry and the opening is 22 feet across, how deep should the searchlight be? The searchlight should be feet deep. (Type an exact answer in simplified form.)

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