# Pre-Calculus

The paddle wheel of a boat measures 16 feet in diameter and is revolving at a rate of 20 rpm. The maximum depth of the paddle wheel under water is 1 foot. Suppose a point is located at the lowest point of the wheel at t=0.

1) Write a cosine function with phase shift 0 for the height above water at the initial point after t seconds

2) use your function to find the height of the initial point after 5.5 seconds

3) and find the values of x for which the equation sin x= -1 is true.

Thanks for any assistance

1. π 0
2. π 0
3. π 37
1. h=-8cos(2pie/3t)+7

11 feet

not sure

1. π 0
2. π 0
posted by Anonymous

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