Pl mathhh

2) find f^-1 for the function f(x)=∛x-2+8

a) f^-1(x)=(x-8)^3+2

b)f^-1(x)=(x+8)^3+2

c)f^-1(x)=∛x-8+2

d)f^-1(x)=(x-8)^3-2

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

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?