Mathematics For Machine Technology

8th Edition

ISBN: 9781337798310

Author: Peterson, John.

Publisher: Cengage Learning,

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Concept explainers

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.

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Textbook Question

Chapter 20, Problem 29A

Solve for the unknown value in each of the following proportions. Check each answer. Round the answers to 3 decimal places where necessary.
29. T 6.6 = 7.5 22.0

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Chapter 20, Problem 28A

Chapter 20, Problem 30A

Chapter 20 Solutions

Mathematics For Machine Technology

Ch. 20 - Use a decimal equivalents table to find the...Ch. 20 - Compute (27.52.5+4.36)21.75 . Express the result...Ch. 20 - A cylinder has a volume, V, of 32.85 mm3. Use the...Ch. 20 - The volume V of a cube is V=s3 , where s is the...Ch. 20 - Multiply 15.328.75 .Ch. 20 - Express the decimal fraction 0.4275 as a common...Ch. 20 - Prob. 7A Ch. 20 - Express the following ratios in lowest fractional...Ch. 20 - Prob. 9A Ch. 20 - Express the following ratios in lowest fractional...

Ch. 20 - Prob. 11A Ch. 20 - Prob. 12A Ch. 20 - Prob. 13A Ch. 20 - Express the following ratios in lowest fractional...Ch. 20 - Prob. 15A Ch. 20 - Express the following ratios in lowest fractional...Ch. 20 - Length A in Figure 205 is 3 inches and length B is...Ch. 20 - Prob. 18A Ch. 20 - Prob. 19A Ch. 20 - In Figure 208, gear A is turning at 120...Ch. 20 - Solve for the unknown value in each of the...Ch. 20 - Solve for the unknown value in each of the...Ch. 20 - Prob. 23A Ch. 20 - Prob. 24A Ch. 20 - Prob. 25A Ch. 20 - Prob. 26A Ch. 20 - Prob. 27A Ch. 20 - Solve for the unknown value in each of the...Ch. 20 - Solve for the unknown value in each of the...Ch. 20 - Prob. 30A Ch. 20 - Prob. 31A Ch. 20 - Prob. 32A Ch. 20 - Prob. 33A Ch. 20 - Prob. 34A Ch. 20 - Prob. 35A Ch. 20 - Prob. 36A Ch. 20 - Prob. 37A Ch. 20 - Prob. 38A Ch. 20 - Prob. 39A Ch. 20 - Prob. 40A Ch. 20 - Prob. 41A Ch. 20 - Prob. 42A Ch. 20 - The proportion AB=CDcompares the sides of two...Ch. 20 - Prob. 44A Ch. 20 - It is sometimes impractical to make engineering...Ch. 20 - Prob. 46A Ch. 20 - Prob. 47A Ch. 20 - A drawing has a scale of 14=3 . Determine the...

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