Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
Advanced Mathematical Concepts: Precalculus with Applications, Student Edition
1st Edition
ISBN: 9780078682278
Author: McGraw-Hill, Berchie Holliday
Publisher: Glencoe/McGraw-Hill
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Chapter 5.5, Problem 14CFU

(a)

To determine

To find: The angle of elevation of the sun, if the shadow of the tower is 2100 feet long at a certain time.

(a)

Expert Solution
Check Mark

Answer to Problem 14CFU

  θ=31.4

Explanation of Solution

Given information: National Monuments: In 1906, Teddy Roosevelt designated Devils Tower National Monument in northeast Wyoming as the first national monument in the United States. The tower rises 1280 feet above the valley of the Bell Fourche River.

Advanced Mathematical Concepts: Precalculus with Applications, Student Edition, Chapter 5.5, Problem 14CFU , additional homework tip  1

Calculation:

Advanced Mathematical Concepts: Precalculus with Applications, Student Edition, Chapter 5.5, Problem 14CFU , additional homework tip  2

This will be a tangent problem as the sketch shows. We are looking for an angle which means it is an arc function problem. In this case we know the opposite and adjacent sides so it is a tangent problem.

  tan112802100=θθ=31.4

(b)

To determine

To find: How long is the shadow when the angle of elevation of the sun is 38 ?

(b)

Expert Solution
Check Mark

Answer to Problem 14CFU

  1638 feet

Explanation of Solution

Given information: National Monuments: In 1906, Teddy Roosevelt designated Devils Tower National Monument in northeast Wyoming as the first national monument in the United States. The tower rises 1280 feet above the valley of the Bell Fourche River.

Advanced Mathematical Concepts: Precalculus with Applications, Student Edition, Chapter 5.5, Problem 14CFU , additional homework tip  3

Calculation:

Advanced Mathematical Concepts: Precalculus with Applications, Student Edition, Chapter 5.5, Problem 14CFU , additional homework tip  4

If the angle of elevation to the sun is 38 we want the shadow length.

So this is a tan problem.

  tan38=1280shadow lengthshadow length=1280tan38shadow length=1638 feet

(c)

To determine

To find: How far is the hiker from the base of Devils Tower, if a person at the top of Devils Tower sees a hiker at an angle of depression of 65 ?

(c)

Expert Solution
Check Mark

Answer to Problem 14CFU

  597 feet

Explanation of Solution

Given information: National Monuments: In 1906, Teddy Roosevelt designated Devils Tower National Monument in northeast Wyoming as the first national monument in the United States. The tower rises 1280 feet above the valley of the Bell Fourche River.

Advanced Mathematical Concepts: Precalculus with Applications, Student Edition, Chapter 5.5, Problem 14CFU , additional homework tip  5

Calculation:

Advanced Mathematical Concepts: Precalculus with Applications, Student Edition, Chapter 5.5, Problem 14CFU , additional homework tip  6

Remember the angle of depression is from the horizontal down. The angle in our triangle is the complement of that or 9065=25

  tan25=distance from monument1280distance from monument = 1280×tan25distance from monument=596.9 feet

Chapter 5 Solutions

Advanced Mathematical Concepts: Precalculus with Applications, Student Edition

Ch. 5.1 - Prob. 11CFUCh. 5.1 - Prob. 12CFUCh. 5.1 - Prob. 13CFUCh. 5.1 - Prob. 14CFUCh. 5.1 - Prob. 15CFUCh. 5.1 - Prob. 16CFUCh. 5.1 - Prob. 17CFUCh. 5.1 - Prob. 18ECh. 5.1 - Prob. 19ECh. 5.1 - Prob. 20ECh. 5.1 - Prob. 21ECh. 5.1 - Prob. 22ECh. 5.1 - Prob. 23ECh. 5.1 - Prob. 24ECh. 5.1 - Prob. 25ECh. 5.1 - Prob. 26ECh. 5.1 - Prob. 27ECh. 5.1 - Prob. 28ECh. 5.1 - Prob. 29ECh. 5.1 - Prob. 30ECh. 5.1 - Prob. 31ECh. 5.1 - Prob. 32ECh. 5.1 - Prob. 33ECh. 5.1 - Prob. 34ECh. 5.1 - Prob. 35ECh. 5.1 - Prob. 36ECh. 5.1 - Prob. 37ECh. 5.1 - Prob. 38ECh. 5.1 - Prob. 39ECh. 5.1 - Prob. 40ECh. 5.1 - Prob. 41ECh. 5.1 - Prob. 42ECh. 5.1 - Prob. 43ECh. 5.1 - Prob. 44ECh. 5.1 - Prob. 45ECh. 5.1 - Prob. 46ECh. 5.1 - Prob. 47ECh. 5.1 - Prob. 48ECh. 5.1 - Prob. 49ECh. 5.1 - Prob. 50ECh. 5.1 - Prob. 51ECh. 5.1 - Prob. 52ECh. 5.1 - Prob. 53ECh. 5.1 - Prob. 54ECh. 5.1 - Prob. 55ECh. 5.1 - Prob. 56ECh. 5.1 - Prob. 57ECh. 5.1 - Prob. 58ECh. 5.1 - Prob. 59ECh. 5.1 - Prob. 60ECh. 5.1 - Prob. 61ECh. 5.1 - Prob. 62ECh. 5.1 - Prob. 63ECh. 5.1 - Prob. 64ECh. 5.1 - Prob. 65ECh. 5.1 - Prob. 66ECh. 5.1 - Prob. 67ECh. 5.1 - Prob. 68ECh. 5.1 - Prob. 69ECh. 5.1 - Prob. 70ECh. 5.1 - Prob. 71ECh. 5.1 - Prob. 72ECh. 5.1 - Prob. 73ECh. 5.1 - Prob. 74ECh. 5.1 - Prob. 75ECh. 5.1 - Prob. 76ECh. 5.1 - Prob. 77ECh. 5.1 - Prob. 78ECh. 5.2 - Prob. 1CFUCh. 5.2 - Prob. 2CFUCh. 5.2 - Prob. 3CFUCh. 5.2 - Prob. 4CFUCh. 5.2 - Prob. 5CFUCh. 5.2 - Prob. 6CFUCh. 5.2 - Prob. 7CFUCh. 5.2 - Prob. 8CFUCh. 5.2 - Prob. 9CFUCh. 5.2 - Prob. 10ECh. 5.2 - Prob. 11ECh. 5.2 - Prob. 12ECh. 5.2 - Prob. 13ECh. 5.2 - Prob. 14ECh. 5.2 - Prob. 15ECh. 5.2 - Prob. 16ECh. 5.2 - Prob. 17ECh. 5.2 - Prob. 18ECh. 5.2 - Prob. 19ECh. 5.2 - Prob. 20ECh. 5.2 - Prob. 21ECh. 5.2 - Prob. 22ECh. 5.2 - Prob. 23ECh. 5.2 - Prob. 24ECh. 5.2 - Prob. 25ECh. 5.2 - Prob. 26ECh. 5.2 - Prob. 27ECh. 5.2 - Prob. 28ECh. 5.2 - Prob. 29ECh. 5.2 - Prob. 30ECh. 5.2 - Prob. 31ECh. 5.2 - Prob. 32ECh. 5.2 - Prob. 33ECh. 5.2 - Prob. 34ECh. 5.2 - Prob. 35ECh. 5.2 - Prob. 36ECh. 5.2 - Prob. 37ECh. 5.2 - Prob. 38ECh. 5.3 - Prob. 1CFUCh. 5.3 - Prob. 2CFUCh. 5.3 - Prob. 3CFUCh. 5.3 - Prob. 4CFUCh. 5.3 - Prob. 5CFUCh. 5.3 - Prob. 6CFUCh. 5.3 - Prob. 7CFUCh. 5.3 - Prob. 8CFUCh. 5.3 - Prob. 9CFUCh. 5.3 - Prob. 10CFUCh. 5.3 - Prob. 11CFUCh. 5.3 - Prob. 12CFUCh. 5.3 - Prob. 13CFUCh. 5.3 - Prob. 14ECh. 5.3 - Prob. 15ECh. 5.3 - Prob. 16ECh. 5.3 - Prob. 17ECh. 5.3 - Prob. 18ECh. 5.3 - Prob. 19ECh. 5.3 - Prob. 20ECh. 5.3 - Prob. 21ECh. 5.3 - Prob. 22ECh. 5.3 - Prob. 23ECh. 5.3 - Prob. 24ECh. 5.3 - Prob. 25ECh. 5.3 - Prob. 26ECh. 5.3 - Prob. 27ECh. 5.3 - Prob. 28ECh. 5.3 - Prob. 29ECh. 5.3 - Prob. 30ECh. 5.3 - Prob. 31ECh. 5.3 - Prob. 32ECh. 5.3 - Prob. 33ECh. 5.3 - Prob. 34ECh. 5.3 - Prob. 35ECh. 5.3 - Prob. 36ECh. 5.3 - Prob. 37ECh. 5.3 - Prob. 38ECh. 5.3 - Prob. 39ECh. 5.3 - Prob. 40ECh. 5.3 - Prob. 41ECh. 5.3 - Prob. 42ECh. 5.3 - Prob. 43ECh. 5.3 - Prob. 44ECh. 5.3 - Prob. 45ECh. 5.3 - Prob. 46ECh. 5.3 - Prob. 47ECh. 5.3 - Prob. 48ECh. 5.3 - Prob. 49ECh. 5.3 - Prob. 50ECh. 5.3 - Prob. 51ECh. 5.3 - Prob. 52ECh. 5.3 - Prob. 53ECh. 5.3 - Prob. 54ECh. 5.3 - Prob. 55ECh. 5.3 - Prob. 56ECh. 5.3 - Prob. 57ECh. 5.3 - Prob. 58ECh. 5.3 - Prob. 59ECh. 5.3 - Prob. 60ECh. 5.4 - Prob. 1CFUCh. 5.4 - Prob. 2CFUCh. 5.4 - Prob. 3CFUCh. 5.4 - Prob. 4CFUCh. 5.4 - Prob. 5CFUCh. 5.4 - Prob. 6CFUCh. 5.4 - Prob. 7CFUCh. 5.4 - Prob. 8CFUCh. 5.4 - Prob. 9CFUCh. 5.4 - Prob. 10ECh. 5.4 - Prob. 11ECh. 5.4 - Prob. 12ECh. 5.4 - Prob. 13ECh. 5.4 - Prob. 14ECh. 5.4 - Prob. 15ECh. 5.4 - Prob. 16ECh. 5.4 - Prob. 17ECh. 5.4 - Prob. 18ECh. 5.4 - Prob. 19ECh. 5.4 - Prob. 20ECh. 5.4 - Prob. 21ECh. 5.4 - Prob. 22ECh. 5.4 - Prob. 23ECh. 5.4 - Prob. 24ECh. 5.4 - Prob. 25ECh. 5.4 - Prob. 26ECh. 5.4 - Prob. 27ECh. 5.4 - Prob. 28ECh. 5.4 - Prob. 29ECh. 5.4 - Prob. 30ECh. 5.4 - Prob. 31ECh. 5.4 - Prob. 32ECh. 5.4 - Prob. 33ECh. 5.4 - Prob. 34ECh. 5.4 - Prob. 35ECh. 5.4 - Prob. 36ECh. 5.4 - Prob. 1MCQCh. 5.4 - Prob. 2MCQCh. 5.4 - Prob. 3MCQCh. 5.4 - Prob. 4MCQCh. 5.4 - Prob. 5MCQCh. 5.5 - Prob. 1CFUCh. 5.5 - Prob. 2CFUCh. 5.5 - Prob. 3CFUCh. 5.5 - Prob. 4CFUCh. 5.5 - Prob. 5CFUCh. 5.5 - Prob. 6CFUCh. 5.5 - Prob. 7CFUCh. 5.5 - Prob. 8CFUCh. 5.5 - Prob. 9CFUCh. 5.5 - Prob. 10CFUCh. 5.5 - Prob. 11CFUCh. 5.5 - Prob. 12CFUCh. 5.5 - Prob. 13CFUCh. 5.5 - Prob. 14CFUCh. 5.5 - Prob. 15ECh. 5.5 - Prob. 16ECh. 5.5 - Prob. 17ECh. 5.5 - Prob. 18ECh. 5.5 - Prob. 19ECh. 5.5 - Prob. 20ECh. 5.5 - Prob. 21ECh. 5.5 - Prob. 22ECh. 5.5 - Prob. 23ECh. 5.5 - Prob. 24ECh. 5.5 - Prob. 25ECh. 5.5 - Prob. 26ECh. 5.5 - Prob. 27ECh. 5.5 - Prob. 28ECh. 5.5 - Prob. 29ECh. 5.5 - Prob. 30ECh. 5.5 - Prob. 31ECh. 5.5 - Prob. 32ECh. 5.5 - Prob. 33ECh. 5.5 - Prob. 34ECh. 5.5 - Prob. 35ECh. 5.5 - Prob. 36ECh. 5.5 - Prob. 37ECh. 5.5 - Prob. 38ECh. 5.5 - Prob. 39ECh. 5.5 - Prob. 40ECh. 5.5 - Prob. 41ECh. 5.5 - Prob. 42ECh. 5.5 - Prob. 43ECh. 5.5 - Prob. 44ECh. 5.5 - Prob. 45ECh. 5.5 - Prob. 46ECh. 5.5 - Prob. 47ECh. 5.5 - Prob. 48ECh. 5.5 - Prob. 49ECh. 5.5 - Prob. 50ECh. 5.5 - Prob. 51ECh. 5.5 - Prob. 52ECh. 5.5 - Prob. 53ECh. 5.5 - Prob. 54ECh. 5.5 - Prob. 55ECh. 5.5 - Prob. 56ECh. 5.5 - Prob. 57ECh. 5.5 - Prob. 58ECh. 5.5 - Prob. 59ECh. 5.5 - Prob. 60ECh. 5.6 - Prob. 1CFUCh. 5.6 - Prob. 2CFUCh. 5.6 - Prob. 3CFUCh. 5.6 - Prob. 4CFUCh. 5.6 - Prob. 5CFUCh. 5.6 - Prob. 6CFUCh. 5.6 - Prob. 7CFUCh. 5.6 - Prob. 8CFUCh. 5.6 - Prob. 9CFUCh. 5.6 - Prob. 10CFUCh. 5.6 - Prob. 11ECh. 5.6 - Prob. 12ECh. 5.6 - Prob. 13ECh. 5.6 - Prob. 14ECh. 5.6 - Prob. 15ECh. 5.6 - Prob. 16ECh. 5.6 - Prob. 17ECh. 5.6 - Prob. 18ECh. 5.6 - Prob. 19ECh. 5.6 - Prob. 20ECh. 5.6 - Prob. 21ECh. 5.6 - Prob. 22ECh. 5.6 - Prob. 23ECh. 5.6 - Prob. 24ECh. 5.6 - Prob. 25ECh. 5.6 - Prob. 26ECh. 5.6 - Prob. 27ECh. 5.6 - Prob. 28ECh. 5.6 - Prob. 29ECh. 5.6 - Prob. 30ECh. 5.6 - Prob. 31ECh. 5.6 - Prob. 32ECh. 5.6 - Prob. 33ECh. 5.6 - Prob. 34ECh. 5.6 - Prob. 35ECh. 5.6 - Prob. 36ECh. 5.6 - Prob. 37ECh. 5.6 - Prob. 38ECh. 5.6 - Prob. 39ECh. 5.6 - Prob. 40ECh. 5.6 - Prob. 41ECh. 5.6 - Prob. 42ECh. 5.7 - Prob. 1GCECh. 5.7 - Prob. 2GCECh. 5.7 - Prob. 3GCECh. 5.7 - Prob. 4GCECh. 5.7 - Prob. 1CFUCh. 5.7 - Prob. 2CFUCh. 5.7 - Prob. 3CFUCh. 5.7 - Prob. 4CFUCh. 5.7 - Prob. 5CFUCh. 5.7 - Prob. 6CFUCh. 5.7 - Prob. 7CFUCh. 5.7 - Prob. 8CFUCh. 5.7 - Prob. 9CFUCh. 5.7 - Prob. 10CFUCh. 5.7 - Prob. 11ECh. 5.7 - Prob. 12ECh. 5.7 - Prob. 13ECh. 5.7 - Prob. 14ECh. 5.7 - Prob. 15ECh. 5.7 - Prob. 16ECh. 5.7 - Prob. 17ECh. 5.7 - Prob. 18ECh. 5.7 - Prob. 19ECh. 5.7 - Prob. 20ECh. 5.7 - Prob. 21ECh. 5.7 - Prob. 22ECh. 5.7 - Prob. 23ECh. 5.7 - Prob. 24ECh. 5.7 - Prob. 25ECh. 5.7 - Prob. 26ECh. 5.7 - Prob. 27ECh. 5.7 - Prob. 28ECh. 5.7 - Prob. 29ECh. 5.7 - Prob. 30ECh. 5.7 - Prob. 31ECh. 5.7 - Prob. 32ECh. 5.7 - Prob. 33ECh. 5.7 - Prob. 34ECh. 5.7 - Prob. 35ECh. 5.7 - Prob. 36ECh. 5.7 - Prob. 37ECh. 5.7 - Prob. 38ECh. 5.7 - Prob. 39ECh. 5.7 - Prob. 40ECh. 5.7 - Prob. 41ECh. 5.7 - Prob. 42ECh. 5.7 - Prob. 43ECh. 5.7 - Prob. 44ECh. 5.7 - Prob. 45ECh. 5.7 - Prob. 46ECh. 5.8 - Prob. 1CFUCh. 5.8 - Prob. 2CFUCh. 5.8 - Prob. 3CFUCh. 5.8 - Prob. 4CFUCh. 5.8 - Prob. 5CFUCh. 5.8 - Prob. 6CFUCh. 5.8 - Prob. 7CFUCh. 5.8 - Prob. 8CFUCh. 5.8 - Prob. 9CFUCh. 5.8 - Prob. 10CFUCh. 5.8 - Prob. 11ECh. 5.8 - Prob. 12ECh. 5.8 - Prob. 13ECh. 5.8 - Prob. 14ECh. 5.8 - Prob. 15ECh. 5.8 - Prob. 16ECh. 5.8 - Prob. 17ECh. 5.8 - Prob. 18ECh. 5.8 - Prob. 19ECh. 5.8 - Prob. 20ECh. 5.8 - Prob. 21ECh. 5.8 - Prob. 22ECh. 5.8 - Prob. 23ECh. 5.8 - Prob. 24ECh. 5.8 - Prob. 25ECh. 5.8 - Prob. 26ECh. 5.8 - Prob. 27ECh. 5.8 - Prob. 28ECh. 5.8 - Prob. 29ECh. 5.8 - Prob. 30ECh. 5.8 - Prob. 31ECh. 5.8 - Prob. 32ECh. 5.8 - Prob. 33ECh. 5.8 - Prob. 34ECh. 5.8 - Prob. 35ECh. 5.8 - Prob. 36ECh. 5.8 - Prob. 37ECh. 5.8 - Prob. 38ECh. 5.8B - Prob. 1GCECh. 5.8B - Prob. 2GCECh. 5.8B - Prob. 3GCECh. 5.8B - Prob. 4GCECh. 5 - Prob. 1SGACh. 5 - Prob. 2SGACh. 5 - Prob. 3SGACh. 5 - Prob. 4SGACh. 5 - Prob. 5SGACh. 5 - Prob. 6SGACh. 5 - Prob. 7SGACh. 5 - Prob. 8SGACh. 5 - Prob. 9SGACh. 5 - Prob. 10SGACh. 5 - Prob. 11SGACh. 5 - Prob. 12SGACh. 5 - Prob. 13SGACh. 5 - Prob. 14SGACh. 5 - Prob. 15SGACh. 5 - Prob. 16SGACh. 5 - Prob. 17SGACh. 5 - Prob. 18SGACh. 5 - Prob. 19SGACh. 5 - Prob. 20SGACh. 5 - Prob. 21SGACh. 5 - Prob. 22SGACh. 5 - Prob. 23SGACh. 5 - Prob. 24SGACh. 5 - Prob. 25SGACh. 5 - Prob. 26SGACh. 5 - Prob. 27SGACh. 5 - Prob. 28SGACh. 5 - Prob. 29SGACh. 5 - Prob. 30SGACh. 5 - Prob. 31SGACh. 5 - Prob. 32SGACh. 5 - Prob. 33SGACh. 5 - Prob. 34SGACh. 5 - Prob. 35SGACh. 5 - Prob. 36SGACh. 5 - Prob. 37SGACh. 5 - Prob. 38SGACh. 5 - Prob. 39SGACh. 5 - Prob. 40SGACh. 5 - Prob. 41SGACh. 5 - Prob. 42SGACh. 5 - Prob. 43SGACh. 5 - Prob. 44SGACh. 5 - Prob. 45SGACh. 5 - Prob. 46SGACh. 5 - Prob. 47SGACh. 5 - Prob. 48SGACh. 5 - Prob. 49SGACh. 5 - Prob. 50SGACh. 5 - Prob. 51SGACh. 5 - Prob. 52SGACh. 5 - Prob. 53SGACh. 5 - Prob. 54SGACh. 5 - Prob. 55SGACh. 5 - Prob. 56SGACh. 5 - Prob. 57SGACh. 5 - Prob. 58SGACh. 5 - Prob. 59SGACh. 5 - Prob. 60SGACh. 5 - Prob. 1SAPCh. 5 - Prob. 2SAPCh. 5 - Prob. 3SAPCh. 5 - Prob. 4SAPCh. 5 - Prob. 5SAPCh. 5 - Prob. 6SAPCh. 5 - Prob. 7SAPCh. 5 - Prob. 8SAPCh. 5 - Prob. 9SAPCh. 5 - Prob. 10SAP
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