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7 January, 21:45

F a storm window has an area of 400 square inches, what are the dimensions if the window is 12 inches wider than it is high (w x h) ?

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  1. 7 January, 23:00
    0
    A=xy and we are told y=12+x so

    A=12x+x^2 and A=400 so

    x^2+12x=400

    x^2+12x-400=0

    x = (-12±√1744) / 2

    x≈14.88

    So the dimensions are approximately 14.88" by 26.88"
  2. 7 January, 23:44
    0
    Well if the window is 40 x 10 the L is 52 and the w 22
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