Answer:
1060 feet
Step-by-step explanation:
The computation of the perimeter of the rectangle is as follows;
As we know that
Perimeter of the rectangle = 2 × ( length + width)
where
Length of x = 5
And, the width be 5x^3 - 4x^2
= 5(5)^3 - 4(5)^2
= 625 - 100
= 525
Now the perimter is
= 2 × (5 + 525)
= 1060 feet
