This problem calls for use of the sine function, since we know the angle of elevation (63 degrees) and the hypotenuse (250 ft), and need to find the opposite side length (which is the height of the kite).
sin 63 degrees = opp / hyp = opp / 250 ft, or
(250 ft)(sin 63 degrees) = opp = (250 ft)(0.891) = 223 ft (to the nearest 1 ft)
30 miles for a single gallon. first we find out how many gallons would be used. number of gallons = 1020/30 gallons = 34. and since 1 gallon costs $4.06 34 gallons would cost = 34 x 4.06 = $138.04
