The time after launch, t, is a function of the height of the rocket, h. h is measured in thousands of feet above sea level, and t is measured in seconds after launch. A rocket is 21,000 feet above sea level after 6 minutes.
Express this information using function notation.

Grace is standing 18 feet from a lighthouse and kelly is standing 10 feet from grace. the angle that grace looks up to see the top of the lighthouse is 45°. the angle that kelly looks up to see the top of the lighthouse is y°. find the height, h, of the lighthouse. find the angle, rounded to the nearest tenth of a degree, in which kelly looks up to the top of the lighthouse. to the nearest tenth of a degree, find the value of x° . in two or more sentences, explain your calculations