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Test bank for Finite Mathematics And Its Applications 12th Edition by Goldstein

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TEST BANK TEST BANK FOR FINITE MATHEMATICS AND ITS APPLICATIONS 12TH EDITION GOLDSTEIN SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Perform t... he indicated elementary row operation. 1) x - 5y = 4 2x + 2y = 5 R2 + (-2)R1 Answer: x - 5y = 4 12y = -3 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 2) Find the result of performing the elementary row operation R3 + (5) R2 on the system 1 0 3 9 0 1 -3 2 0 -5 4 1 . A) 1 0 3 9 0 0 -3 2 0 -5 4 1 B) 1 0 3 9 0 1 -3 2 0 0 -11 11 C) 1 0 3 9 0 -5 -11 11 0 -5 4 1 D) 1 0 3 9 0 1 -3 2 10 5 14 11 Answer: B 1 TEST BANK FOR FINITE MATHEMATICS AND ITS APPLICATIONS 12TH EDITION GOLDSTEIN 3) Find the result of performing the elementary row operation R2 + (-1) R3 on the system 1 0 3 9 0 1 -3 2 0 -5 4 1 . A) 1 0 3 9 0 1 -3 2 0 -7 2 0 B) 1 0 3 9 0 6 -7 1 0 -5 4 1 C) 1 0 3 9 0 -7 2 0 0 -5 4 1 D) 1 0 3 9 0 -1 -3 2 0 -4 -7 1 Answer: B 4) The system 1 0 0 -2 0 1 3 5 1 1 -3 4 is equivalent to the system A) 1 0 0 -2 0 1 3 5 0 1 -3 6 . B) 1 0 0 -2 0 1 -3 5 0 0 0 4 . C) 1 0 0 -2 0 3 -9 5 1 1 -3 4 . D) 1 0 0 -2 0 1 -3 5 0 1 -3 4 . Answer: A 2 TEST BANK FOR FINITE MATHEMATICS AND ITS APPLICATIONS 12TH EDITION GOLDSTEIN 5) The system 1 0 1 -1 3 1 3 7 2 1 4 4 is equivalent to the system A) 1 0 1 -1 0 1 0 7 2 1 4 4 B) 1 0 1 -1 3 1 3 7 0 1 3 2 C) 1 0 1 -1 3 1 3 7 0 - 1 2 2 D) 1 0 1 -1 3 1 3 7 0 1 2 2 Answer: C [Show More]

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