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Mathematics 8 Online
OpenStudy (anonymous):

At the end of a dock, the high tide of 14 m is recorded at 9:00 am. The low tide of 6 m is recorded at 3:00 pm. A sinusoidal function can model the water depth versus time. Equation is 4sin pi/6(t+3)+10 Find the depth of the water at 5 PM

OpenStudy (alexwee123):

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