SOLUTION: Suppose that a rectangle has a perimeter of 26 meters. Express the area A(x) of the rectangle in terms of the length x of one of its sides. A(x) =
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Question 262531: Suppose that a rectangle has a perimeter of 26 meters. Express the area A(x) of the rectangle in terms of the length x of one of its sides. A(x) =
Answer by drk(1908) (Show Source): You can put this solution on YOUR website!
Perimeter can be expressed as
in our case we can say
or divide by 2 to get
and solving for L, we get
----
A = LW
so by substitution, we get
A = (13-W)W
let W = x, then
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