A function f (x)=2x^2-3x and f (x+h)-f (x)/h=2h+1.find the value of x

41/17 as a decimal rounded to the nearest hundredth

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

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?