Question:

# In a tidal river, the time between high tide and low tide is

Last updated: 7/24/2022

In a tidal river, the time between high tide and low tide is 5.8 hours. At high tide the depth of the water is 18.4 feet, while at low tide the depth is 4.8 feet. Assume the water depth is a trigonometric function of time. Assuming that high tide occurs at noon (t = 0), write an equation that models the depth of the water, t hours after noon.

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