SOLUTION: A large rectangular movie screen in an IMAX theater has an area of 10,925 square feet. Find the dimensions of the screen if it is 20 feet longer than it is wide.
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Question 988666: A large rectangular movie screen in an IMAX theater has an area of 10,925 square feet. Find the dimensions of the screen if it is 20 feet longer than it is wide. Found 2 solutions by Boreal, Alan3354:Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! width=x
length=x+20
x(x+20)=10,925
x^2+20x-10925=0
quadratic formula
x=(1/2)(-20+/- sqrt (400+43800); the sqrt term=210
x=(1/2) (190), positive root only.
=95 feet wide and 115 feet long
Area is their product or 11500-575=10,925 sq ft.
You can put this solution on YOUR website! A large rectangular movie screen in an IMAX theater has an area of 10,925 square feet. Find the dimensions of the screen if it is 20 feet longer than it is wide.
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Longer than wide?
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h = height
h*(h+20) = 10925
Solve for h
