Select all of the following problem situations that involve permutations.

A. How many ways can you arrange 4 of the letters of the word SOLVE if no letter can be
used more than once?

B. There are 75 different varieties of cereal at the store. How many ways can you choose 3
different varieties?

C. There are 9 books on your summer reading list. How many ways can you choose 3 to read?

D. There are 8 schools competing in the final round of the national swim relay. How many ways can the gold, silver, and bronze medals be awarded?

E. How many 4-digit access codes are possible using the numbers 1 through 6 if each number can only be used once?

Each equation given below describes a parabola. which statement best compares their graphs? x = 2y^2 x = 8y^2

Closing a credit card usually _your debt ratio. a. increasesb. decreasesc. improvesd. has no effect on

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?