An adult takes 800 mg of ibuprofen. Each hour, the amount of ibuprofen in the persons system decreases by about 29%. How much ibuprofen is left after 6 hours

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?

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?