12. A ship's chief navigator is plotting the course for a tour of three islands. The first island is 12 miles due west of the second island. The third island is 18 miles due south of the second island. a) Do you have enough information to determine First island W N S 12 mi. E Simas Second island 18 mi. Third island the bearing required to sail directly back from the third island to the first island? Explain. b) If your answer to part a is yes, describe how the navigator would determine the bearing.
12. A ship's chief navigator is plotting the course for a tour of three islands. The first island is 12 miles due west of the second island. The third island is 18 miles due south of the second island. a) Do you have enough information to determine First island W N S 12 mi. E Simas Second island 18 mi. Third island the bearing required to sail directly back from the third island to the first island? Explain. b) If your answer to part a is yes, describe how the navigator would determine the bearing.
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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Please help me answer question 5
Transcribed Image Text:angle of
ination
asures an
gle above the
izontal. An
le of
ression
asures an
le below the
zontal.
12. A ship's chief navigator is
plotting the course for a tour
of three islands. The first island
is 12 miles due west of the
second island. The third island
is 18 miles due south of the
second island.
a) Do you have enough
information to determine
First
island
W
N
S
12 mi.
E
b) Determine the measure of LA.
Is LA an angle of inclination or
an angle of depression? Why?
c) Describe another method to solve part b.
Which method do you prefer? Why?
Second
island
18 mi.
Third
island
the bearing required to sail
directly back from the third island to the first island? Explain.
b) If your answer to part a is yes, describe how the navigator would
determine the bearing.
13. Assessment Focus A carpenter is building a bookshelf against the sloped
ceiling of an attic.
a) Determine the length of the sloped ceiling, AB,
used to build the bookshelf.
sloped ceiling
BURS
3.24 m
B
SALEEY
1.1 Trigonometric Ratios in Right Triangles
2.35 m
с
11
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