Với giá trị của m , hàm số nào sau đây là hàm số bậc nhất

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?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents