Perimeter is 400 ft and the area 9100 ft, give possible widths.

3 answers

Maybe a rectangle?

2L + 2 W =400 so L + w = 200 so L =200-w

L w = 9100

(200-w) w = 9100

w^2 -200 w + 9100 = 0

w = [ 200 +/- sqrt (40000 - 36400)] / 2

w = [ 200 +/- 60 ] / 2

w = 130 or 70
list all possible rational zeros for the given function f(x) = 5x^4+15x^3-7x^2x-10 = ?
ur wrong