Answer all. Thanks 1. A tower 140 ft high stands on the water edge of a lake. From the top of the tower, theangle 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 changesto a course of 170°. And sails for 8 hours at 18 knots. After 12 hours, (a) what is thedistance 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 poleis 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 Xis 16.3°. From point Z on the same horizontal line with Y and the foot pf the mountain, theangle of elevation of X is 28.7°. What is the height of the mountain if the distance betweenY and Z is 125m?

“Since you have asked multiple question, we will solve the first question for you. If you want any…

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?

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?

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

Answer all. Thanks

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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