Maria and Tram want to build a dirt bike ramp. They know the dimensions of the base (350 cm) and the height (25 cm), but they need to know the angles to decide how to cut the wood accurately. Maria made a scale drawing and used it to estimate that the slope angle (`x`) is about 4 degrees. Tram thinks the angle is about 10 degrees. But Tram thinks there must be a way of using the calculator to get the slope angle.

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2

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?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?