The length of a text messaging conversation is normally distributed with a mean of 2 minutes and a standard deviation of .5 minutes. what is the probability that a conversation lasts longer than 3 minutes?

0.043351
0.063748
0.02275
0.095424

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

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?

What’s the answer ? use the picture to see the problem