2. A ship leaves a port and sails 4 hours on a course of 80° at 20 knots. Then the ship changes to a course of 170°. And sails for 8 hours at 18 knots. After 12 hours, (a) what is the distance of the ship from the port and (b) what is t he bearing from the port to the ship? 3. From the top of the building 60 ft high, the angle of elevation of the top of a vertical pole is 149 At tbe bottom of the building the angle of elevation of the ton of the pole is 29
2. A ship leaves a port and sails 4 hours on a course of 80° at 20 knots. Then the ship changes to a course of 170°. And sails for 8 hours at 18 knots. After 12 hours, (a) what is the distance of the ship from the port and (b) what is t he bearing from the port to the ship? 3. From the top of the building 60 ft high, the angle of elevation of the top of a vertical pole is 149 At tbe bottom of the building the angle of elevation of the ton of the pole is 29
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Question
Number 2, 3, 4. Step by step
![1. A tower 140 ft high stands on the water edge of a lake. From the top of the tower, the
angle of depression of an object on the water's edge on the other side of the lake is 33.6°.
What is the distance across the lake?
2. A ship leaves a port and sails 4 hours on a course of 80° at 20 knots. Then the ship changes
to a course of 170°. And sails for 8 hours at 18 knots. After 12 hours, (a) what is the
distance of the ship from the port and (b) what is t he bearing from the port to the ship?
3. From the top of the building 60 ft high, the angle of elevation of the top of a vertical pole
is 14°. At the bottom of the building the angle of elevation of the top of the pole is 28°.
find (1) the height of the pole and (b) the distance of the pole from the building.
4. Point X is at top of a mountain. From a point Y on the ground, the angle of elevation of X
is 16.3°. From point Z on the same horizontal line with Y and the foot pf the mountain, the
angle of elevation of X is 28.7°. What is the height of the mountain if the distance between
Y and Z is 125m?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F82bce22c-4104-42d2-8246-b4366c1680a6%2F3692de18-21c3-4ab5-b9d5-d5d7e604cbbc%2Fwjqlrti_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. A tower 140 ft high stands on the water edge of a lake. From the top of the tower, the
angle of depression of an object on the water's edge on the other side of the lake is 33.6°.
What is the distance across the lake?
2. A ship leaves a port and sails 4 hours on a course of 80° at 20 knots. Then the ship changes
to a course of 170°. And sails for 8 hours at 18 knots. After 12 hours, (a) what is the
distance of the ship from the port and (b) what is t he bearing from the port to the ship?
3. From the top of the building 60 ft high, the angle of elevation of the top of a vertical pole
is 14°. At the bottom of the building the angle of elevation of the top of the pole is 28°.
find (1) the height of the pole and (b) the distance of the pole from the building.
4. Point X is at top of a mountain. From a point Y on the ground, the angle of elevation of X
is 16.3°. From point Z on the same horizontal line with Y and the foot pf the mountain, the
angle of elevation of X is 28.7°. What is the height of the mountain if the distance between
Y and Z is 125m?
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