SOLUTION:
A rectangle has a perimeter of 30 feet.
Express the area A of the rectangle as a function of the length x of one of its sides.
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-> SOLUTION:
A rectangle has a perimeter of 30 feet.
Express the area A of the rectangle as a function of the length x of one of its sides.
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Question 443220:
A rectangle has a perimeter of 30 feet.
Express the area A of the rectangle as a function of the length x of one of its sides. Answer by ewatrrr(24785) (Show Source):
Hi
A rectangle has a perimeter of 30 feet.
Let x and y represent the width and length respectively
2*y + 2*x = 30ft
2(y+x) = 30ft
y + x = 15ft
y = 15ft-x
Area(rectangle) = L*W = (15-x)x
A = x(15ft-x)
