Which equation represents the cost of the high-
eficiency washing machine over a given number of
years?
which equation represents the cost of the standard
washing machine over a given number of
years?
ater how many years of use would the washing
machines cost the same amount?
which washing machine would be the more practical
purchase if kept for 9 years?

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?

A10 inch cookie cake is divided into 8 slices. what is the area of 3 slices

Ablue whale traveled 3112 miles in 214hours. what was the whale's rate in yards per hour? (1 mile = 1,760 yards)