Using the side of the square find the area:
Area = 30^2 = 900 square feet.
The rectangles area is the same, 900 square feet.
Let the width = X
The length would be 2X + 70
Area = length x width
X * 2x+ 70 = 900
This expands to 2x^2 * 70x = 900
Use the quadratic formula to solve for x:
-70 +/- sqrt(70^2-4*2(-900))/2*2
X = 10
Width = x = 10 feet
Length = 2x + 70 = 90 feet
-21/5 is the closest!!!
Hope this helps.
If you want me to explain why, just ask! :)
Domain: 3<x<6
Range: 11<y<8
The greatest common facter of 12 and 38 is 2 so the answer is:
2 ft
