For 20 and 21 how do I find the value of x and the value of g'(x)

20. CalC5c04s 10 pts possible The graph of f is shown in the figure 01.r = 2.5 021 = 5 0 3. 1 = 7 2 045 - 6 8 10 . 5. not enough information given 06 7 = 1 If 9(x ) - 5(t ) dt , for what value of a does g(x) have a maxi- mum? 21. CalCSc07s 10 pts possible Determine g (x) when . 1. (z) = V3 - 472 g(x) = V3-412dt. 02 (1) = V3-4x2 0 3. '(x) = V3-472 . 4 9(z) = - V3 - 412 0 5 (x) = -V3-4x2 0 6. 9(x) = -Arv3-4x2