Asample data set has a mean of 122.3 and a standard deviation of 18.5. convert a score of 168.4 to a z score and determine if the score is "usual" or "unusual" 1.23; usual -1.23; usual d.49; unusual -2.49; unusual

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 is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)

The legs of a right triangle measure 6 meters and 8 meters. what is the length of the hypotonuse.