SOLUTION: Perimeter of a rectangle: The width of a rectangle playground is 2x-5 feet and the length is 3x-9 feet. Can you write a polynomial P(x) that represents the perimeter and then e

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Question 169104This question is from textbook Elementary and Intermediate Algebra
: Perimeter of a rectangle:
The width of a rectangle playground is 2x-5 feet and the length is 3x-9 feet.
Can you write a polynomial P(x) that represents the perimeter and then evaluate the perimeter polynomial if x is 4 feet? Thanks. This question is from textbook Elementary and Intermediate Algebra

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Perimeter: P%28x%29=%282x-5%29%2B%283x-9%29=%282x%2B3x%29%2B%28-5-9%29=5x-14


This means that P%28x%29=5x-14


So when x=4


P%284%29=5%284%29-14=20-14=6



So P%284%29=6