Tim's phone service charges $23.29 plus an additional $0.22 for each text message sent per month. If Tim's phone bill was $28.79, which equation could be used to find how many text messages, x, Tim sent last month? A.
$23.29x + $0.22 = $28.79

B.
$23.29x - $0.22 = $28.79

C.
$0.22x + $23.29 = $28.79

D.
$0.22x - $23.29 = $28.79

Find the value of the cosine for angle a

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 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?