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OpenStudy (anonymous):
Xavier is riding on a Ferris wheel at the local fair. His height can be modeled by the equation H(t) = 20 cos (pi over 15)t + 30, where H represents the height of the person above the ground in feet at t seconds.
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OpenStudy (anonymous):
Part 1: How far above the ground is Xavier before the ride begins? Part 2: How long does the Ferris wheel take to make one complete revolution? Part 3: Assuming Xavier begins the ride at the top, how far from the ground is the edge of the Ferris wheel, when Xavier's height above the ground reaches a minimum?
OpenStudy (anonymous):
I'm pretty sure part 1 is 30, but not sure about the other 2 parts
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