Geraldine is picking a four-digit password by using the digits 0 through 9. she can use each digit only once. how many different pass words are possible?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

X+ y = 5 ; x - y =3 solve using linear combination

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?