SOLUTION: The width of a rectangular playground is 2x - 5 feet, and the length is 3x + 9 feet.Write a polynomial P(x) that represents the perimeter and then evaluate this perimeter polynomia

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Question 44100: The width of a rectangular playground is 2x - 5 feet, and the length is 3x + 9 feet.Write a polynomial P(x) that represents the perimeter and then evaluate this perimeter polynomial if x is 4 feet.
Answer by adamchapman(301) About Me  (Show Source):
You can put this solution on YOUR website!
you have a rectyangle with two sides of length (2x-5)ft, and two of length (3x+9)ft. Add the lengthss of all sides together to find the perimeter P(x).
P%28x%29=2%282x-5%29%2B2%283x%2B9%29
P%28x%29=4x-10%2B6x%2B18%29
P%28x%29=10x%2B8%29
if x=4:
P%28x%29=P%284%29=10%284%29%2B8=48
x=48ft
I hope this helps
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk