A. Write a sinusoidal function that models the tide depth d (in feet) as a function of the time t (in hours). Let t = 0 represent midnight.(Show your work). b. Find all the times when low and high tides occur in a 24-hour period. (use Desmos to Graph your function to help you visualize this situation)

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?