SOLUTION: The area of a rectangular park is given by the equation x^2 + 25x + 150 as measured in square yards. You want to walk the length of the park. How far will you walk if x = 12? (A

Question 209554: The area of a rectangular park is given by the equation x^2 + 25x + 150 as measured in square yards. You want to walk the length of the park. How far will you walk if x = 12?
(A)22 yards
(B)600 yards
(C)27 yards
(D)900 yards
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Since the area of a rectangle is gien by:
then you can write:
where L = length of the park (usually the longest side) and W = the width of the park.
So let's factor the quadratic trinomial:
so we can say that:
and so...
and, if x = 12, then:

yards.
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