answer these problems, please..

Section 4.1: Problem 1 {1 point} Previous Problem Problem List Next Problem The function x] 2 [4: 9).?\" has one critical number. Find the critical number. Section 4.1: Problem 10 {1 point} Previous Problem Problem List Next Problem Find the :c-ooordinate oi the absolute maximum for the function Z-coordinate of absolute maximum = C] Section 4.1: Problem 2 (1 point) Previous Problem Problem List Next Problem Find all critical values for the function f(r) = 972 + 10 and then list them (separated by commas) in the box below. List of critical numbers:Section 4.1: Problem 3 (1 point) Previous Problem Problem List Next Problem The critical numbers of the function f(t) = 5+2/3 + +5/3 are fi = and to = with ti