How to solve (c) ?

X m125 - Section 3.5 (2021) - Math Vy X Home webassign.net/web/Student/Assignment-Responses/submit?dep=27868343&tags=autosave#question399 [3.5/4.5 Points] DETAILS PREVIOUS ANSWERS The rate of intake, R, during a respiratory cycle for a person at rest is proportional to a sine wave with period 6 seconds. R is measured in liters per secon (a) Write a formula for R(t) . Use k as the proportionality constant. R(t) = k . sin It . t 3 (b) If the rate of intake is 0.79 liters per second at 1.5 seconds, what is the value of k? k = 0.79 c) How fast is the rate of intake changing at 3 seconds? hs iters per second per second X Submit Answer Submit Assignment Save Assignment Progress Type here to search O 85OF Sunny ~% E