The water level varies from 12 inches at low tide to 52 inches at high tide. low tide occurs at 9: 15 a. m. and high tide occurs at 3: 30 p. m. what is a cosine function that models the variation in inches above and below the water level as a function of time in hours since 9: 15 a. m.?

Pleasse me i need an answer. give me the correct answer. answer if you know it ! the club will base its decision about whether to increase the budget for the indoor rock climbing facility on the analysis of its usage. the decision to increase the budget will depend on whether members are using the indoor facility at least two times a week. use the best measure of center for both data sets to determine whether the club should increase the budget. assume there are four weeks in a month. if you think the data is inconclusive, explain why.