EmoryU

To find the derivative, you must use the product rule f'(x) = u'*v + u*v' So, f(x) = x^2*(2x+1)^3 f'(x)=(2x)(2x+1)^3+(x^2)(3)(2x+1)^2(2) (need chain rule, too) Simplify (2x)(2x+1)^2(5x+1) (10x^2+2x)(2x+1)^2 In the form y-y1 = m(x-x1) y+1 = (10x^2+2x)(2x+1...

10000(1-n/20)=6500 (1-n/20)=.65 1-n = 13 -n = 12 n = -12

x = tablecloths made 18.5 = 2.25x x = 8 and 2/9

Correct! a complementary angle finds the other angle needed to "complete" it into a 90 degree angle, so x (37) and 90 - x (90 - 37) is the way