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6. If A is a 2x2 matrix, B is a 3x4 matrix, C is a 2x4 matrix and D is a 4x2 matrix, which of the following does not exist? A. ACD C. ABC D. BDC B. DAC 7. Which of the following systems of equations are dependent? A. x+3y+1=0 3x-6y+3=0 B. -x+2y+5=0 D. x+2y+4=0 3x-2y+4=0 3x-6y-15-0 8. What must be the values of a and b to eliminate y in a(2x-y+1) + b(3x+2y-4)=0? A. a = -2, b = 1 C. a = 1, b = 2 B. a = -2, b = -1 D. a = 2,6 = 1 C. 2x-3y-z=0 x-1.5y+1=0

6. If A is a 2x2 matrix, B is a 3x4 matrix, C is a 2x4 matrix and D is a 4x2 matrix, which of the following does not exist? A. ACD C. ABC D. BDC B. DAC 7. Which of the following systems of equations are dependent? A. x+3y+1=0 3x-6y+3=0 B. -x+2y+5=0 D. x+2y+4=0 3x-2y+4=0 3x-6y-15-0 8. What must be the values of a and b to eliminate y in a(2x-y+1) + b(3x+2y-4)=0? A. a = -2, b = 1 C. a = 1, b = 2 B. a = -2, b = -1 D. a = 2,6 = 1 C. 2x-3y-z=0 x-1.5y+1=0

Elements Of Modern Algebra
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.6: Matrices
Problem 6E
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6. If A is a 2x2 matrix, B is a 3x4 matrix, C is a 2x4 matrix and D is a 4x2 matrix, which of the following does not exist? A. ACD C. ABC D. BDC B. DAC 7. Which of the following systems of equations are dependent? C. 2x-3y-z=0 A. x+3y+1=0 3x-6y+3=0 x-1.5y + 1 = 0 B. -x+2y+5=0 D. x+2y+4=0 3x-2y+4=0 3x-6y-15-0 8. What must be the values of a and b to eliminate y in a(2x-y+1) + b(3x+2y-4)=0? A. a = -2, b = 1 C. a = 1, b = 2 B. a = -2, b = -1 D. a = 2, b = 1
Transcribed Image Text:6. If A is a 2x2 matrix, B is a 3x4 matrix, C is a 2x4 matrix and D is a 4x2 matrix, which of the following does not exist? A. ACD C. ABC D. BDC B. DAC 7. Which of the following systems of equations are dependent? C. 2x-3y-z=0 A. x+3y+1=0 3x-6y+3=0 x-1.5y + 1 = 0 B. -x+2y+5=0 D. x+2y+4=0 3x-2y+4=0 3x-6y-15-0 8. What must be the values of a and b to eliminate y in a(2x-y+1) + b(3x+2y-4)=0? A. a = -2, b = 1 C. a = 1, b = 2 B. a = -2, b = -1 D. a = 2, b = 1
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