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Mathematics, 21.11.2020 01:40 jaymoney0531

a parabolic lamp is facing due east. The bulb (located at the focus) is 8 inches away from the vertex (located at the origin). the lamp has a diameter of 20 inches. Which is the depth of the dish?

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a parabolic lamp is facing due east. The bulb (located at the focus) is 8 inches away from the verte...
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