SOLUTION: if the area of a rectangle with width x can be represented with the expression A(x)=x(14-x). what is the perimeter of the rectangle? A.) 28 B.)56 C.) 56-4x D.) 4x+28

SOLUTION: if the area of a rectangle with width x can be represented with the expression A(x)=x(14-x). what is the perimeter of the rectangle? A.) 28 B.)56 C.) 56-4x D.) 4x+28

Algebra.Com

Question 177818: if the area of a rectangle with width x can be represented with the expression A(x)=x(14-x). what is the perimeter of the rectangle?
A.) 28
B.)56
C.) 56-4x
D.) 4x+28

Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
A=L*W (x)(14-x)
:
P=2L+2W
:
P=2x+2(14-x)=2x+28-2x=28
:
answer is A
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