Modeling with periodic functions. A Ferris wheel is 40 meters in diameter and boarded from a platform that is 5 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 8 minutes. A model for this situation can be represented by the 27 20 cos 8 function h(t) = + 25 . How many minutes of the ride are spent higher than 41 meters above the ground? Note: If your calculated answer is a decimal, give no more than 2 decimal places in your answer. minutes

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