Question

minutes) r(r) (rotations per minute) 72 95 112 775 Rochelle rode a stationary bicycle. The number of rotations per minute of the wheel of the stationary bicycle at time t minutes during Rochelle's ride is modeled by a differentiable function r for 0sIs9 minutes. Values of r(t) for selected values of t are shown in the table above. (A) Estimate r'(4). Show the computations that lead to your answer. Indicate units of measure. (B) Is there a time t, for 3s1s5, at which r) is 106 rotations per minute? Justify your answer. (C) Use a left Riemann sum with the four subintervals indicated by the data in the table to approximate Jro) di. Using correct units, splain the meaning of context of the problem. the stationary bicycle at time t minutes during Sarah's ride is modeled by the function s, definedby st()-40+20rsin for 05159 minutes Find the average numberof rotations per minute of the wheel of the stationary bicycle for Ost s 9 minutes. (D) Sarah also rode a stationary bicycle. The number of rotations per minute of the wheel of

Answer 1