Solve the system of equations by using the inverse of the coefficient matrix.x - y + z = -12x + y + z = -2x + y - z = 4
A. (-4, -3, 5)
B. (-3, -4, 5)
C. (-4, 5, -3)
D. No inverse, no solution for system
Answer: C
Mathematics
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A. Yes B. No
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Write the sum of the geometric series as a rational number.0.5 + 0.05 + 0.005 + 0.0005 + ...
A. 
B. 
C. 
D. 
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Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation.-5x + 3y = 82x - 4y = -20
A. {(6, 2)} B. {(-6, -2)} C. {(-2, -6)} D. {(2, 6)}
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Graph the region described by the inequality.-4x ? 2y
A. 
B. 
C. 
D. 
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