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OpenStudy (anonymous):
If a storm window has an area of 400 square inches, what are the dimensions if the window is 12 inches higher than it is wide (w x h)?
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OpenStudy (anonymous):
The windows being rectangular right?
OpenStudy (saifoo.khan):
x(x+12) = 400
OpenStudy (saifoo.khan):
x^2+12x -400 = 0
OpenStudy (saifoo.khan):
x = 14.88 x = -26.88
OpenStudy (saifoo.khan):
Area = b * h 400 = 14.88 * h h = 400/14.88 h = 26.88units
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