D Question 4 Find the derivative. f(x) = find f'(x) (x+9/square root of (x)) (1/square root of (x)) x3/2+9 square root of (x) (9/(x) with superscript (3/2)) (1/2square root of (x)) (9/2 (x) with superscript (3/2)) (1/2square root of (x)) (9/2 x) D Question 5 Find the derivative. f(x) = (x-8)2/3 f'(x) = (2x/((x) with superscript (3) - 8) to the (3) root) f'(x) = (x/((x) with superscript (3) - 8) to the (3) root) O f'(x) = ((2x) with superscript (2)/((x) with superscript (3) - 8) to the (3) root) f'(x) = ((x) with superscript (2)/((x) with superscript (3) - 8) to the (3) root) Question 6 Find the second derivative. y= 6x3-8x+5 16x-24 O 16x-36 36x-16 O 24x - 16 4 pts 4 pts 4 pts