7. m1 =
mZ2 =
4
mZ3 =
3
470
129° 1
5
95°
7/121°
m24 =
6
m25 =
m26 =
-
2
m27 =
=

7x+8y=-18, 4x-9y=-3 solve the system of equations

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

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?