i need help with tese plz

9. [-/0.9 Points] DETAILS SALGTRIG4 5.1.068. MY NOTES ASK YOUR TEACHER This exercise involves the formula for the area of a circular sector. The area of a sector of a circle with a central angle of 7/12 rad is 17 ma. Find the radius of the circle. (Round your answer to one decimal place.) m 10. [-/0.9 Points] DETAILS SALGTRIG4 5.1.082.MI. MY NOTES ASK YOUR TEACHER An irrigation system uses a straight sprinkler pipe r = 450 ft long that pivots around a central point as shown. Because of an obstacle the pipe is allowed to pivot through 0 = 240 only. Find the area irrigated by this system. (Round your answer to the nearest whole number.) ft 2 11. [-/1 Points] DETAILS LARPCALC9 4.1.070. MY NOTES ASK YOUR TEACHER A car's rear windshield wiper rotates 140. The total length of the wiper mechanism is 23 inches and the length of the wiper blade is 14 inches. Find the area wiped by the wiper blade. (Round your answer to one decimal place.) in 26. [-/0.9 Points] DETAILS SALGTRIG4 5.1.054. MY NOTES ASK YOUR TEACHER Find the length s of the circular arc. (Assume r = 3 and 0 = 1060.) S : 7. [-/0.9 Points] DETAILS LARPCALC9 4.1.054. MY NOTES ASK YOUR TEACHER Find the radian measure of the central angle of a circle of radius r that intercepts an arc of length s. Radius r Arc Length s 15 feet 10 feet rad 8. [-/0.9 Points] DETAILS SALGTRIG4 5.1.061. MY NOTES ASK YOUR TEACHER Find the radius r of the circle if an arc of length 14 m on the circle subtends a central angle of 7//9 rad. (Round your answer to two decimal places.) r = m2. [0.9/0.9 Points] DETAILS PREVIOUS ANSWERS SALGTRIG4 5.1.028. MY NOTES ASK YOUR TEACHER Find the degree measure of the angle with the given radian measure. 197r 12 -285 3. [0/03 Points] SALGTRIG4 5.1.030.M|. The measure of an angle in standard position is given. Find two positive angles and two negative angles that are coterminal with the given angle. (Enter your answers as a comma-separated list.) 45 ASK YOUR TEACHER l 4 Rewrite each angle in degree measure. (Do not use a calculator.) _E (a) 12 .75 \\I a 571 (b) T 225 5. [010.9 Points] PREVIOUS ANSWERS SALGTRIG4 5.1 .032. The measure of an angle in standard position is given. Find two positive angles and two negative angles that are coterminal with the given angle. (Enter your answers as a comma-separated list.) 117r 6 ASK YOUR TEACHER 5.76 rad 1. [-/0.9 Points] DETAILS SALGTRIG4 5.1.026. MY NOTES ASK YOUR TEACHER Find the degree measure of the angle with the given radian measure. 18