Observing Traffic A traffic report helicopter left the WKPR studios on a course with a bearing of 210. After flying 12 mi to reach Interstate Highway 20, the helicopter flew due east along I-20 for some time. The helicopter headed back to WKPR on a course with a bearing of 310 and reported no ac- cidents along I-20. For how many miles did the helicopter fly along I-20? Round to the nearest tenth of a mile.

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Can you do problems 23 and 25 for me?

MODELING
Solve each problem.
23. Observing Traffic A traffic report helicopter left the WKPR
studios on a course with a bearing of 210. After flying 12 mi
to reach Interstate Highway 20, the helicopter flew due east
along I-20 for some time. The helicopter headed back to
WKPR on a course with a bearing of 310 and reported no ac-
cidents along I-20. For how many miles did the helicopter fly
along I-20? Round to the nearest tenth ofa mile.
24. Course of a Fighter Plane During an important NATO exer-
cise, an F-14 Tomcat left the carrier Nimitz on a course with a
bearing of 34° and flew 400 mi. Then the F-14 flew for some
distance on a course with a bearing of 162°. Finally, the plane
flew back to its starting point on a course with a bearing of
308°. What distance did the plane fly on the final leg of the
journey? Round to the nearest tenth of a mile.
25. Surveying Property A surveyor locating the coners of a trian-
gular piece of property started at one corner and walked 480 ft
in the direction N36°W to reach the next comer. The surveyor
turned and walked S21 W to get to the next comer of the
property. Finally, the surveyor walked in the direction N82 E
to get back to the starting point. What is the perimeter of this
29. Cell
piece of property to the nearest foot?
26. Sailing Joe and Jill set sail from the same point, with Joe sailing
in the direction S4'E and Jill sailing in the direction $9 W
After 4 hr, Jill was 2 mi due west of Joe. How far had Jill
sailed to the nearest tenth of a mile?
30. Movi
27. Wing Dimensions The F-106 Delta Dart once held a world
speed record of Mach 2.3. Its swepthack trianggular wings have
the dimensions given in the figure. Find the length marked x in
the figure to the nearest tenth of a foot.
31. Design
e seyd
Transcribed Image Text:MODELING Solve each problem. 23. Observing Traffic A traffic report helicopter left the WKPR studios on a course with a bearing of 210. After flying 12 mi to reach Interstate Highway 20, the helicopter flew due east along I-20 for some time. The helicopter headed back to WKPR on a course with a bearing of 310 and reported no ac- cidents along I-20. For how many miles did the helicopter fly along I-20? Round to the nearest tenth ofa mile. 24. Course of a Fighter Plane During an important NATO exer- cise, an F-14 Tomcat left the carrier Nimitz on a course with a bearing of 34° and flew 400 mi. Then the F-14 flew for some distance on a course with a bearing of 162°. Finally, the plane flew back to its starting point on a course with a bearing of 308°. What distance did the plane fly on the final leg of the journey? Round to the nearest tenth of a mile. 25. Surveying Property A surveyor locating the coners of a trian- gular piece of property started at one corner and walked 480 ft in the direction N36°W to reach the next comer. The surveyor turned and walked S21 W to get to the next comer of the property. Finally, the surveyor walked in the direction N82 E to get back to the starting point. What is the perimeter of this 29. Cell piece of property to the nearest foot? 26. Sailing Joe and Jill set sail from the same point, with Joe sailing in the direction S4'E and Jill sailing in the direction $9 W After 4 hr, Jill was 2 mi due west of Joe. How far had Jill sailed to the nearest tenth of a mile? 30. Movi 27. Wing Dimensions The F-106 Delta Dart once held a world speed record of Mach 2.3. Its swepthack trianggular wings have the dimensions given in the figure. Find the length marked x in the figure to the nearest tenth of a foot. 31. Design e seyd
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