19. An automatic lawn sprinkler sprays a distance of 20 feet while rotating 30°. What is...
19. An automatic lawn sprinkler sprays a distance of 20 feet while rotating 30°. What is the area of the sector of the grass that is watered? 20. Find the length of the arc of a circle of diameter 12 meters subtended by the central angle of 63 2 Fill in the exact values for sine and cose of the special angles in the first quadrant. (__ (- -) 22. What is the domain and range of f(x) = 3 + 4 sin(2x - 7)? 23 If sin 0 = .6, find the following: A. Cos 8 B. sin(-0) C. cos(-0) 24. A bicycle has wheels 28 inches in diameter. The wheels are rotating at 180 RPM. Find the linear speed of the bicycle 25) A car travels 3 miles. Its tires make 2649 revolutions. What is the radius of the tire in inches?