SOLUTION: sandy plans to paint a rectangular mural of a waterfront image on the westside of his garage. the width of the mural will be 7 feet longer than the height. the diagonal is 13 feet.

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Question 1122909: sandy plans to paint a rectangular mural of a waterfront image on the westside of his garage. the width of the mural will be 7 feet longer than the height. the diagonal is 13 feet. find the dimensions of the mural.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
length is x
width is x+7
diagonal or hypotenuse is 13
so x^2+x^2+14x+49=169, squaring everything
2x^2+14x-120=0
x^2+7x-60=0
(x+12)(x-5)=0
x=12, 5
the length is 5 ft, width 7 ft.