Contemporary Mathematics For Business & Consumers, Brief Edition, Loose-leaf Version

8th Edition

ISBN: 9781305867192

Author: Robert Brechner, Geroge Bergeman

Publisher: South-Western College Pub

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Unitary Method

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Textbook Question

Chapter 8, Problem 4AT

Solve the following word problems. Round dollars to the nearest cent and percents to the nearest tenth of a percent.

Wyatt’s Western Wear purchases shirts for $47.50 each. A $34.00 markup is added to the shirts.

a. What is the selling price?

b. What is the percent markup based on cost?

c. What is the percent markup based on selling price?

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Chapter 8, Problem 3AT

Chapter 8, Problem 5AT

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Question 4 (a) The following matrices represent linear maps on R² with respect to an orthonormal basis: = [1/√5 2/√5 [2/√5 -1/√5] " [1/√5 2/√5] A = B = [2/√5 1/√5] 1 C = D = = = [ 1/3/5 2/35] 1/√5 2/√5 -2/√5 1/√5' For each of the matrices A, B, C, D, state whether it represents a self-adjoint linear map, an orthogonal linear map, both, or neither. (b) For the quadratic form q(x, y, z) = y² + 2xy +2yz over R, write down a linear change of variables to u, v, w such that q in these terms is in canonical form for Sylvester's Law of Inertia. [6] [4]

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Chapter 8 Solutions

Contemporary Mathematics For Business & Consumers, Brief Edition, Loose-leaf Version

Ch. 8.I - For the following, use the basic retailing...Ch. 8.I - For the following, use the basic retailing...Ch. 8.I - Prob. 3TIE Ch. 8.I - Prob. 4TIE Ch. 8.I - Prob. 5TIE Ch. 8.I - Prob. 6TIE Ch. 8.I - Prob. 1RE Ch. 8.I - For the following items, calculate the missing...Ch. 8.I - Prob. 3RE Ch. 8.I - For the following items, calculate the missing...

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