A sealed-beam headlight is in the shape of a paraboloid of revolution. The bulb, which is placed

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A sealed-beam headlight is in the shape of a paraboloid of revolution. The bulb, which is placed at the focus, is 1 inch from the vertex. If the depth is to be 2 inches, what is the diameter of the headlight at its opening?

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Precalculus

ISBN: 978-0321716835

9th edition

Authors: Michael Sullivan

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