Variables of x and y are in direct proportion, and y=12.5 when x=25. if x=40 the y=

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr