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A Search Light Uses A 6ft6 \mathrm{ft} Wide Parabolic Mirror That Is

Question 63

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A search light uses a 6ft6 \mathrm{ft} wide parabolic mirror that is 4ft4 \mathrm{ft} deep. If the lamp is positioned 0.141ft0.141 \mathrm{ft} above the center of the mirror, how wide is the beam in the sky?

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