Mathematics for Machine Technology
7th Edition
ISBN: 9781133281450
Author: John C. Peterson, Robert D. Smith
Publisher: Cengage Learning
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Chapter 22, Problem 14A
Finding Percentage, Percent, and Base in Practical Applications
Solve the following problems.
14. This year's earnings of a company are 140% of last year's earnings. The company earned $910,000 this year. How much did the company earn last year?
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Let A be a vector space with basis 1, a, b. Which (if any) of the following rules
turn A into an algebra? (You may assume that 1 is a unit.)
(i) a² = a, b² = ab = ba = 0.
(ii) a²=b, b² = ab = ba = 0.
(iii) a²=b, b² = b, ab = ba = 0.
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= 1. Show
(a) Let G = Z/nZ be a cyclic group, so G = {1, 9, 92,...,g" } with g":
that the group algebra KG has a presentation KG = K(X)/(X” — 1).
(b) Let A = K[X] be the algebra of polynomials in X. Let V be the A-module
with vector space K2 and where the action of X is given by the matrix
Compute End(V) in the cases
(i) x = p,
(ii) xμl.
(67) ·
(c) If M and N are submodules of a module L, prove that there is an isomorphism
M/MON (M+N)/N.
(The Second Isomorphism Theorem for modules.)
You may assume that MON is a submodule of M, M + N is a submodule of L
and the First Isomorphism Theorem for modules.
Chapter 22 Solutions
Mathematics for Machine Technology
Ch. 22 - What is 7.25% of 43.80? Round your answer to 2...Ch. 22 - Express 3.5% as a common fraction.Ch. 22 - Solve the proportion A12=2745 . If necessary,...Ch. 22 - Prob. 4ACh. 22 - Prob. 5ACh. 22 - Prob. 6ACh. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...
Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Prob. 17ACh. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Prob. 21ACh. 22 - Prob. 22ACh. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Prob. 25ACh. 22 - Prob. 26ACh. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Finding Percentage, Percent, and Base in Practical...Ch. 22 - Prob. 31ACh. 22 - A manufacturer estimates that 15,500 pieces per...Ch. 22 - The average percent defective product of a...Ch. 22 - Prob. 34ACh. 22 - Prob. 35ACh. 22 - The cost of one dozen cutters is listed as $525. A...Ch. 22 - A manufacturer's production this week is 3620...Ch. 22 - Two machines are used to produce the same product....Ch. 22 - Allowing for scrap, a firm produced 1890 pieces....Ch. 22 - A manufacturing company receives $122,000 upon the...Ch. 22 - Prob. 41A
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