Mathematics, 11.07.2021 15:30 ani61
Kelly is standing in a wavy water and notices the depth of the waves varies in a periodic way that can be modeled by a trigonometric function. She starts a stopwatch to time the waves. After 3.2 seconds, and then again every 3 seconds, the water just touches her knees. Between peaks, the water recedes to her ankles. Kelly's ankles are 11cm off the ocean floor, and her knees are 55 cm off the ocean floor. Find the fomula of the trigonometric function that models the depth D of the water t seconds after Kelly starts the stopwatch. Define the function using radians.
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Kelly is standing in a wavy water and notices the depth of the waves varies in a periodic way that c...
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