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19 January, 14:06

The length of a rectangular air filter is 33 inches less than twice the width. find the length and width of the filter if the area is 464464 square inches.

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  1. 19 January, 16:38
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    L=2W-33, A=LW, and A=464464 so

    464464 = (2W-33) W

    464464=2W^2-33W

    2W^2-33W-464464=0

    W = (33 (+-) (3716801) ^ (1/2)) / 4

    W=490.23in (approx)

    L=2W-33=947.45in
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