The area of a square garden is A square feet and the perimeter is P feet. If A=2P+9, what is the perimeter of the garden, in feet?
A) 28
B) 36
C) 40
D) 56
E) 64
OA=B
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The area of a square garden is A square...
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BlindVision
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truplayer256
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One side of the square garden=s
Area of square garden=s^2
s^2=A-->s^2=2P+9
Perimeter of square garden= 4s---> P=4s
s^2=2(4s)+9
s^2=8s+9
s^2-8s-9=0
(s-9)(s+1)=0
s=9
Perimeter=4s=4(9)=36 B
Area of square garden=s^2
s^2=A-->s^2=2P+9
Perimeter of square garden= 4s---> P=4s
s^2=2(4s)+9
s^2=8s+9
s^2-8s-9=0
(s-9)(s+1)=0
s=9
Perimeter=4s=4(9)=36 B
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BlindVision
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