Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (4th Edition)

4th Edition

ISBN: 9780134686974

Author: Michael Sullivan, Michael Sullivan III

Publisher: PEARSON

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Textbook Question

Chapter 6.2, Problem 79AYU

Problems 79 and 80 require the following discussion: When granular materials are allowed to fall freely, they form conical (cone-shaped) piles. The naturally occurring angle of slope, measured from the horizontal, at which the loose material comes to rest is called the angle of repose and varies for different materials. The angle of repose $θ$ is related to the height $h$ and base radius $r$ of the conical pile by the equation $θ = \cot^{- 1} \frac{r}{h}$ . See the illustration.

Chapter 6.2, Problem 79AYU, Problems 79 and 80 require the following discussion: When granular materials are allowed to fall

Angle of Repose: Deicing Salt Due to potential transportation issues (for example, frozen waterways) deicing salt used by highway departments in the Midwest must be ordered early and stored for future use.

When deicing salt is stored in a pile 14 feet high, the diameter of the base of the pile is 45 feet.

(a) Find the angle of repose for deicing salt.

(b) What is the base diameter of a pile that is 17 feet high?

Source: The Salt Storage Handbook, 2013

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Chapter 6.2, Problem 78AYU

Chapter 6.2, Problem 80AYU

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Chapter 6 Solutions

Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (4th Edition)

Ch. 6.1 - What is the domain and the range of y=sinx ? (p....Ch. 6.1 - A suitable restriction on the domain of the...Ch. 6.1 - tan4=;sin3=;sin(6)=;cos=.Ch. 6.1 - 4. True or False The graph of is decreasing on the...Ch. 6.1 - 5. Ch. 6.1 - sin(6)=______; cos= _____;Ch. 6.1 - y=sin1x Means_____, where 1x1 and 2y2.Ch. 6.1 - cos1(cosx)=x, where_____.Ch. 6.1 - 9. , where______; Ch. 6.1 - 10. True or False The domain of is .

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