Use Cramer's rule to solve the linear system.
A. x = 3, y = 3, z = 8
B. x = 2, y = -5, z = -8
C. x = 2, y = 5, z = 8
D. x = 5, y = 8, z = 5
Answer: C
Mathematics
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A. {-4, -1} B. {1, 4} C. {-3, 8} D. {-8, 3}
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Estimate the answer by using front end rounding.
A. 10,480 B. 9830 C. 9820 D. 9829
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A. Not defined
B. 0
C. - 
D. 
Mathematics