Explanation Given: The provided matrices are A = [ − 3 − 9 2 6 ] , B = [ 4 6 2 3 ] . Formula used: Let A be an m × n matrix and let B be an n × k matrix. The product matrix A B is the m × k matrix whose entry in the i t h row and j t h column is the product of the i t h row of A and the j t h column of B . Proof: Consider: A B = [ − 3 − 9 2 6 ] [ 4 6 2 3 ] = [ ( − 3 ) ( 4 ) + ( − 9 ) ( 2 ) ( − 3 ) ( 6 ) + ( − 9 ) ( 3 ) ( 2 ) ( 4 ) + ( 6 ) ( 2 ) ( 2 ) ( 6 ) + ( 6 ) ( 3 ) ] = [ − 12 − 18 − 18 − 27 8 + 12 12 + 18 ] = [ − 30 − 45 20 30 ] That is, A B = [ − 30 − 45 20 30 ]

Mathematics with Applications In the Management, Natural and Social Sciences (11th Edition)

11th Edition

ISBN: 9780321931078

Author: Margaret L. Lial, Thomas W. Hungerford, John P. Holcomb, Bernadette Mullins

Publisher: PEARSON

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Chapter 6.5, Problem 19E

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Chapter 6 Solutions

Mathematics with Applications In the Management, Natural and Social Sciences (11th Edition)

Ch. 6.1 - Checkpoint1 Use the substitution method tosolve...Ch. 6.1 - Checkpoint 2 Use the elimination method to solve...Ch. 6.1 - Checkpoint 3 Solve the system of equations . Draw...Ch. 6.1 - Checkpoint 4 Solve the following system: Ch. 6.1 - Checkpoint 5 Solve the system Draw the graph of...Ch. 6.1 - Prob. 6CP Ch. 6.1 - Prob. 1E Ch. 6.1 - Prob. 2E Ch. 6.1 - Use substitution to solve each system. (See...Ch. 6.1 - Use substitution to solve each system. (See...

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