Which numbers belong to the range of the relation {(4, –1), (–7, 2), (1, 2), (2, 1)}?
choose the correct answer.
a. 2
b. 1
c. –1
d. –7

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

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?

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry