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Question 21 (1 point) Listen The graph below shows the height of a seat on a ferris wheel, h, in metres above the ground, over time, t, in seconds. The maximum height of the seat is 19 m and the minimum height is 1 m. What is the period for one revolution of the seat on the ferris wheel? 32 seconds O 64 seconds 16 seconds 50 seconds Question 22 (1 point) Listen In a 366-day year, the average daily maximum temperature in Vancouver follows a sinusoidal pattern with a highest value of 23.6 "C on day 209, July 27, and a lowest value of 4.2 -C on day 26, Jan 26. Determine the equation for temperature, 7, as a function of time in days, d. OF = 9.7 cos ( 300-(d - 26) ) - 13.9 OT = 4.2 cos ( 30-(d - 26)) + 13.9 OF =-9.7 cos (200-(d - 26)) + 13.9 OT =9.7 cos ( 360 (d + 26)) + 13.9