Please help me answer the following. Thank you :)

Question 2 of 25 > As an object in rectilinear motion moves, its signed distance 3 [in meters} from the origin after t seconds is given by the position function 3 = ftr) = 3:2 + 9:. Find the velocity v at the given times. (Express numbers in exact form. Use symbolic notation and fractions where needed.) mm m Question 3 of 25 > Find the rate of change of f(x) = x236 at the indicated numbers c. (Use symbolic notation and fractions where needed.) (a)c=0 m>= l:l 036:9 m: I:I Question 4 of 25 > Attempt 1 An metal cube with each edge of length s millimeters is expanding uniformly as a consequence of being heated. (a) Find the average rate of change of the volume of the cube with respect to an edge as s increases from 5.0 to 5.1 mm. Do not round your answer. average rate: 76.51 mm /mm (b) Find the instantaneous rate of change of the volume of the cube with respect to an edge at the instant when s = 5 mm. Do not round your answer. instantaneous rate: mm /mm IncorrectQuestion 8 of 25 > G Attempt 2 Find the derivative of the function f. 3 f0?) = E If your answer has a radical, express it as a rational exponent. Incorrect Question 9 of 25 ) G Attempt 2 Differentiate the function for) = T x 2. (Use symbolic notation and fractions where nmded.) Determine the domain of f'. (Use symbolic notation and fractions where needed. Give your answers as intervals in the form (an, at]. Use the symbol on for innity. Use an appropriate type of parenthesis "C\