Mathematical Applications for the Management, Life, and Social Sciences

11th Edition

ISBN: 9781305108042

Author: Ronald J. Harshbarger, James J. Reynolds

Publisher: Cengage Learning

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Textbook Question

Chapter 3.3, Problem 19E

In problem 17- 20, a system of linear equations and a reduced matrix for the system are given. (a) Use the reduced matrix to find the general solution of the system, if one exists.

(b) If multiple solutions exist, find two specific solutions.

19. { 2 x + y − z = 7 x − y − z = 4 3 x + 3 y − z = 10 [ 1 0 − 2 3 0 1 1 3 0 0 0 | 11 3 − 1 3 0 ]

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Chapter 3.3, Problem 18E

Chapter 3.3, Problem 20E

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Chapter 3 Solutions

Mathematical Applications for the Management, Life, and Social Sciences

Ch. 3.1 - (a) Do matrices A and B have the same...Ch. 3.1 - Ch. 3.1 - 3. (a) What matrix D must be added to matrix A...Ch. 3.1 - Prob. 4CP Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Prob. 4E Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...

Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Prob. 9E Ch. 3.1 - Prob. 10E Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Use the following matrices for Problems...Ch. 3.1 - Prob. 21E Ch. 3.1 - Prob. 22E Ch. 3.1 - Prob. 23E Ch. 3.1 - In Problems 15-28, perform the operations if...Ch. 3.1 - Prob. 25E Ch. 3.1 - In Problems 15-28, perform the operations if...Ch. 3.1 - Prob. 27E Ch. 3.1 - Prob. 28E Ch. 3.1 - Prob. 29E Ch. 3.1 - Prob. 30E Ch. 3.1 - In Problems , find and. Ch. 3.1 - In Problems , find and. Ch. 3.1 - Prob. 33E Ch. 3.1 - 34. Find and if Ch. 3.1 - Endangered species The tables below give the...Ch. 3.1 - 36. Asian demographics The following tables show...Ch. 3.1 - Prob. 37E Ch. 3.1 - Prob. 38E Ch. 3.1 - Sales Let MatrixA represent the sales (in...Ch. 3.1 - 40. Opinion polls A poll of people revealed...Ch. 3.1 - Prob. 41E Ch. 3.1 - Weekly earnings The following table shows median...Ch. 3.1 - Prob. 43E Ch. 3.1 - 44. Debt payment Ace, Baker, and Champ are being...Ch. 3.1 - Prob. 45E Ch. 3.1 - Prob. 46E Ch. 3.1 - 47. Management Management is attempting to...Ch. 3.1 - 48. Ranking To rank the five members of a...Ch. 3.1 - 49. Production and inventories Operating from two...Ch. 3.1 - Prob. 50E Ch. 3.1 - 51. Management In an evaluation of labor...Ch. 3.1 - Prob. 52E Ch. 3.1 - 53. For the data in the Problem , use an Excel...Ch. 3.1 - 54. For the data in problem, use an Excel...Ch. 3.2 - What is element if with and Ch. 3.2 - 2. Find the product. and Ch. 3.2 - 3. (a) Compute if and (b) Can the product...Ch. 3.2 - In Problems 1 and 2, multiply the matrices. (a)[1...Ch. 3.2 - In Problems 1 and 2, multiply the matrices. (a)[2...Ch. 3.2 - In Problems 5-24, use matrices through. In...Ch. 3.2 - In Problems 5-24, use matrices through. In...Ch. 3.2 - In Problems 5-24, use matrices through. In...Ch. 3.2 - Prob. 6E Ch. 3.2 - Prob. 7E Ch. 3.2 - Prob. 8E Ch. 3.2 - Prob. 9E Ch. 3.2 - In Problems 5-24, use matrices through. In...Ch. 3.2 - In Problems 5-24, use matrices through. In...Ch. 3.2 - Prob. 12E Ch. 3.2 - In Problems 5-24, use matrices through. In...Ch. 3.2 - Prob. 14E Ch. 3.2 - Prob. 15E Ch. 3.2 - Prob. 16E Ch. 3.2 - Prob. 17E Ch. 3.2 - Prob. 18E Ch. 3.2 - Prob. 19E Ch. 3.2 - Prob. 20E Ch. 3.2 - Prob. 21E Ch. 3.2 - Prob. 22E Ch. 3.2 - In Problems 25-34, use the matrices below....Ch. 3.2 - Prob. 24E Ch. 3.2 - Prob. 25E Ch. 3.2 - Prob. 26E Ch. 3.2 - Prob. 27E Ch. 3.2 - Prob. 28E Ch. 3.2 - Prob. 29E Ch. 3.2 - Prob. 30E Ch. 3.2 - Prob. 31E Ch. 3.2 - Prob. 32E Ch. 3.2 - Is it true for matrices (as it is for real...Ch. 3.2 - Prob. 34E Ch. 3.2 - Prob. 35E Ch. 3.2 - 38. For Are and defined? What size is each...Ch. 3.2 - Prob. 37E Ch. 3.2 - In each of Problems , substitute the given values...Ch. 3.2 - Prob. 39E Ch. 3.2 - Prob. 40E Ch. 3.2 - Prob. 41E Ch. 3.2 - Prob. 42E Ch. 3.2 - 45. Car pricing A car dealer can buy midsize cars...Ch. 3.2 - . Revenue A clothing manufacturer has factories...Ch. 3.2 - Prob. 45E Ch. 3.2 - . Area and population Matrix below gives the...Ch. 3.2 - 49. Population dynamics Suppose that for a...Ch. 3.2 - 50. Nutrition Suppose the weights (in grams) and...Ch. 3.2 - Prob. 49E Ch. 3.2 - Encoding messages Multiplication by a matrix can...Ch. 3.2 - 54. Production A manufacturer of small kitchen...Ch. 3.2 - 55. Accounting The annual budget of the Magnum...Ch. 3.2 - Prob. 54E Ch. 3.3 - CHECKPOINT (a) Write the augmented matrix for...Ch. 3.3 - Prob. 2CP Ch. 3.3 - CHECKPOINT For each system of equations, the...Ch. 3.3 - CHECKPOINT For each system of equations, the...Ch. 3.3 - Prob. 5CP Ch. 3.3 - In a problem 1 and 2 use the indicated row...Ch. 3.3 - In problem 1 and 2, use the indicated row...Ch. 3.3 - In problem 3 and 4, write the augmented matrix...Ch. 3.3 - In problem 3 and 4, write the augmented matrix...Ch. 3.3 - In problem 5-10, an augmented matrix for a...Ch. 3.3 - Prob. 6E Ch. 3.3 - In problem 5-10, an augmented matrix for a system...Ch. 3.3 - In problem 5-10, an augmented matrix for a system...Ch. 3.3 - In problem 5-10, an augmented matrix for a system...Ch. 3.3 - Prob. 10E Ch. 3.3 - In problem 11-16, use row operations on...Ch. 3.3 - In problem 11-16, use row operations on...Ch. 3.3 - In problem 11-16, use row operations on augmented...Ch. 3.3 - In problem 11-16, use row operations on augmented...Ch. 3.3 - Prob. 15E Ch. 3.3 - Prob. 16E Ch. 3.3 - In problem 17- 20, a system of linear equations...Ch. 3.3 - In problem 17- 20, a system of linear equations...Ch. 3.3 - In problem 17- 20, a system of linear equations...Ch. 3.3 - In problem 17- 20, a system of linear equations...Ch. 3.3 - Prob. 21E Ch. 3.3 - Prob. 22E Ch. 3.3 - Prob. 23E Ch. 3.3 - In systems of equations in problem 23 – 36 may...Ch. 3.3 - Prob. 25E Ch. 3.3 - Prob. 26E Ch. 3.3 - Prob. 27E Ch. 3.3 - Prob. 29E Ch. 3.3 - In systems of equations in problem 23 – 36 may...Ch. 3.3 - Prob. 30E Ch. 3.3 - Prob. 31E Ch. 3.3 - In systems of equations in problem 23 – 36 may...Ch. 3.3 - Prob. 33E Ch. 3.3 - In systems of equations in problem 23 – 36 may...Ch. 3.3 - Prob. 35E Ch. 3.3 - Prob. 36E Ch. 3.3 - Prob. 37E Ch. 3.3 - Prob. 38E Ch. 3.3 - Prob. 39E Ch. 3.3 - Prob. 40E Ch. 3.3 - Prob. 41E Ch. 3.3 - Prob. 43E Ch. 3.3 - Prob. 44E Ch. 3.3 - Prob. 45E Ch. 3.3 - Prob. 46E Ch. 3.3 - Prob. 47E Ch. 3.3 - Prob. 48E Ch. 3.3 - 45. Nutrition A preschool has Campbell’s Chunky...Ch. 3.3 - 46. Ticket sales A 3500-seat theatre sells...Ch. 3.3 - 47. Investment A man has $235,000 invested in...Ch. 3.3 - 48. Loans A bank lent $1.2 million for the...Ch. 3.3 - 49. Car rental patterns A car rental agency in...Ch. 3.3 - 50. Nutrition A psychologist studying the...Ch. 3.3 - 51. Nutrition The following table gives the...Ch. 3.3 - 52. Investment A brokerage house offers three...Ch. 3.3 - Investment Suppose that portfolios I and II in...Ch. 3.3 - 54. Nutrition Each ounce of substance A supplies...Ch. 3.3 - 55. Nutrition A glass of skim milk supplies 0.1 mg...Ch. 3.3 - 56. Transportation The King Trucking Company has...Ch. 3.3 - Nutrition A botanist can purchase plant food of...Ch. 3.3 - Traffic flow In the analyst of traffic flow, a...Ch. 3.3 - Nutrition Three different bacteria are cultured in...Ch. 3.3 - Irrigation An irrigation system allows water to...Ch. 3.3 - Investment An investment club has set a goal to...Ch. 3.3 - A trust account client has to be invested. The...Ch. 3.3 - 63. Investment A brokerage house offers three...Ch. 3.4 - [Type here] CHECKPOINT Are the matricesand...Ch. 3.4 - Prob. 2CP Ch. 3.4 - Prob. 3CP Ch. 3.4 - [Type text] If is a matrix and is its inverse,...Ch. 3.4 - Prob. 2E Ch. 3.4 - Prob. 3E Ch. 3.4 - Prob. 4E Ch. 3.4 - [Type text] In Problems 5-10, find the inverse...Ch. 3.4 - [Type text] In Problems 5-10, find the inverse...Ch. 3.4 - Prob. 7E Ch. 3.4 - Prob. 8E Ch. 3.4 - Prob. 9E Ch. 3.4 - Prob. 10E Ch. 3.4 - Prob. 11E Ch. 3.4 - Prob. 12E Ch. 3.4 - Prob. 13E Ch. 3.4 - Prob. 14E Ch. 3.4 - [Type here] In Problems 15-20, find the inverse...Ch. 3.4 - Prob. 16E Ch. 3.4 - Prob. 17E Ch. 3.4 - [Type here] In Problems 15-20, find the inverse...Ch. 3.4 - Prob. 19E Ch. 3.4 - Prob. 20E Ch. 3.4 - Prob. 21E Ch. 3.4 - Prob. 22E Ch. 3.4 - [Type here] In Problems 23-26, the inverse of...Ch. 3.4 - [Type here] In Problems 23-26, the inverse of...Ch. 3.4 - [Type here] In Problems 23-26, the inverse of...Ch. 3.4 - [Type here] In Problems 23-26, the inverse of...Ch. 3.4 - Prob. 27E Ch. 3.4 - [Type here] 28. Use the inverse found in Problem...Ch. 3.4 - Prob. 29E Ch. 3.4 - Prob. 30E Ch. 3.4 - [Type here] In Problems 29-32, use inverse...Ch. 3.4 - [Type here] In Problems 29-32, use inverse...Ch. 3.4 - Prob. 33E Ch. 3.4 - Prob. 34E Ch. 3.4 - Prob. 35E Ch. 3.4 - Prob. 36E Ch. 3.4 - Prob. 37E Ch. 3.4 - Prob. 38E Ch. 3.4 - Prob. 39E Ch. 3.4 - Prob. 40E Ch. 3.4 - Prob. 41E Ch. 3.4 - Prob. 42E Ch. 3.4 - Prob. 43E Ch. 3.4 - Prob. 44E Ch. 3.4 - Prob. 45E Ch. 3.4 - Prob. 46E Ch. 3.4 - Prob. 47E Ch. 3.4 - Prob. 48E Ch. 3.4 - Prob. 49E Ch. 3.4 - Prob. 50E Ch. 3.4 - 51. Competition A product is made by only two...Ch. 3.4 - 52. Demographics Suppose that a government study...Ch. 3.4 - In Problems 53-63, set up each system of...Ch. 3.4 - In Problems 53-63, set up each system of...Ch. 3.4 - In Problems, set up each system of equations and...Ch. 3.4 - In problems , set up each system of equations...Ch. 3.4 - In Problems 5363, set up each system of equations...Ch. 3.4 - In Problems 5363, set up each system of equations...Ch. 3.4 - In Problems set up each system of equations and...Ch. 3.4 - In Problems set up each system of equations and...Ch. 3.4 - In Problems 53-63, set up each system of equations...Ch. 3.4 - In Problems set up each system of equations and...Ch. 3.5 - CHECKPOINT The following technology matrix for a...Ch. 3.5 - Prob. 2CP Ch. 3.5 - CHECKPOINT 3. Suppose a primitive economy has wood...Ch. 3.5 - Prob. 4CP Ch. 3.5 - The following technology matrix for a simple...Ch. 3.5 - For the economy in Problem 1, what industry is...Ch. 3.5 - Prob. 3E Ch. 3.5 - Prob. 4E Ch. 3.5 - The following technology matrix describes the...Ch. 3.5 - The following technology matrix describes the...Ch. 3.5 - Prob. 7E Ch. 3.5 - Prob. 8E Ch. 3.5 - Prob. 9E Ch. 3.5 - Prob. 10E Ch. 3.5 - Suppose a primitive economy consists of two...Ch. 3.5 - Suppose an economy has two industries, agriculture...Ch. 3.5 - Prob. 13E Ch. 3.5 - Prob. 14E Ch. 3.5 - Suppose the economy of an underdeveloped country...Ch. 3.5 - Suppose a simple economy with only an agricultural...Ch. 3.5 - Prob. 17E Ch. 3.5 - An underdeveloped country has an agricultural...Ch. 3.5 - A simple economy has an electronic components...Ch. 3.5 - Prob. 20E Ch. 3.5 - A primitive economy consists of a fishing industry...Ch. 3.5 - An economy has a manufacturing industry and a...Ch. 3.5 - Prob. 23E Ch. 3.5 - Prob. 24E Ch. 3.5 - Prob. 25E Ch. 3.5 - Interdepartmental costs Within a company is a...Ch. 3.5 - Suppose that an economy has three industries...Ch. 3.5 - Prob. 28E Ch. 3.5 - Suppose that the economy of a small nation has an...Ch. 3.5 - Suppose an economy has the same technology matrix...Ch. 3.5 - Suppose that a simple economy has three...Ch. 3.5 - Prob. 32E Ch. 3.5 - Problems 33-38 refer to closed Leontief models....Ch. 3.5 - Problems 33-38 refer to closed Leontief models....Ch. 3.5 - Problems 33-38 refer to closed Leontief models....Ch. 3.5 - Problems 33-38 refer to closed Leontief models....Ch. 3.5 - Problems 33-38 refer to closed Leontief models....Ch. 3.5 - Problems 33-38 refer to closed Leontief models. A...Ch. 3.5 - Prob. 39E Ch. 3.5 - Card tables are made by joining legs and a top...Ch. 3.5 - Prob. 41E Ch. 3.5 - A log carrier has a body made from a -ft length of...Ch. 3 - Use the matrices below a needed to complete...Ch. 3 - Use the matrices below a needed to complete...Ch. 3 - Prob. 3RE Ch. 3 - Prob. 4RE Ch. 3 - Prob. 5RE Ch. 3 - Prob. 6RE Ch. 3 - Prob. 7RE Ch. 3 - Prob. 8RE Ch. 3 - Prob. 9RE Ch. 3 - Prob. 10RE Ch. 3 - Prob. 11RE Ch. 3 - Prob. 12RE Ch. 3 - Prob. 13RE Ch. 3 - Prob. 14RE Ch. 3 - Prob. 15RE Ch. 3 - Prob. 16RE Ch. 3 - Prob. 17RE Ch. 3 - Prob. 18RE Ch. 3 - Prob. 19RE Ch. 3 - Prob. 20RE Ch. 3 - Prob. 21RE Ch. 3 - Prob. 22RE Ch. 3 - Prob. 23RE Ch. 3 - Prob. 24RE Ch. 3 - Prob. 25RE Ch. 3 - Prob. 26RE Ch. 3 - Prob. 27RE Ch. 3 - Prob. 28RE Ch. 3 - Prob. 29RE Ch. 3 - Prob. 30RE Ch. 3 - In Problems 30-36, solve each system using...Ch. 3 - Prob. 32RE Ch. 3 - In Problems 30-36, solve each system using...Ch. 3 - Prob. 34RE Ch. 3 - Prob. 35RE Ch. 3 - Prob. 36RE Ch. 3 - Prob. 37RE Ch. 3 - Prob. 38RE Ch. 3 - Prob. 39RE Ch. 3 - Prob. 40RE Ch. 3 - Prob. 41RE Ch. 3 - Prob. 42RE Ch. 3 - Prob. 43RE Ch. 3 - Prob. 44RE Ch. 3 - Prob. 45RE Ch. 3 - Prob. 46RE Ch. 3 - Prob. 47RE Ch. 3 - Prob. 48RE Ch. 3 - The Burr Cabinet Company manufactures bookcases...Ch. 3 - Prob. 50RE Ch. 3 - A small church choir is made up of men and women...Ch. 3 - Manufacturing Two departments of a firm, and ,...Ch. 3 - Prob. 53RE Ch. 3 - Investment A woman has to invest. She has decided...Ch. 3 - Nutrition A biologist is growing three different...Ch. 3 - Transportation An airline company has three types...Ch. 3 - Economy models An economy has a shipping industry...Ch. 3 - Economy models A simple economy has a shoe...Ch. 3 - Economy models A look at the industrial sector of...Ch. 3 - Economy models Suppose a closed Leontief model for...Ch. 3 - Prob. 1T Ch. 3 - Prob. 2T Ch. 3 - Prob. 3T Ch. 3 - Prob. 4T Ch. 3 - Prob. 5T Ch. 3 - Prob. 6T Ch. 3 - Prob. 7T Ch. 3 - Prob. 8T Ch. 3 - Prob. 9T Ch. 3 - Prob. 10T Ch. 3 - Prob. 11T Ch. 3 - Prob. 12T Ch. 3 - Prob. 13T Ch. 3 - Prob. 14T Ch. 3 - Suppose that the solution of an investment problem...Ch. 3 - Prob. 16T Ch. 3 - Prob. 17T Ch. 3 - Prob. 18T Ch. 3 - Prob. 19T Ch. 3 - Prob. 20T Ch. 3 - 21. Suppose the technology matrix for a closed...Ch. 3 - Use the following information in Problem ...Ch. 3 - Use the following information in Problem ...Ch. 3 - Prob. 24T Ch. 3 - Prob. 1EAGP1 Ch. 3 - Prob. 2EAGP1 Ch. 3 - Prob. 3EAGP1 Ch. 3 - Prob. 4EAGP1 Ch. 3 - Prob. 5EAGP1 Ch. 3 - Prob. 6EAGP1 Ch. 3 - Prob. 7EAGP1 Ch. 3 - Prob. 1EAGP2 Ch. 3 - Prob. 2EAGP2 Ch. 3 - Prob. 3EAGP2 Ch. 3 - Prob. 4EAGP2

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Solution Summary: The author explains how to determine the solution of the system using the given reduced matrix.

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Chapter 3 Solutions