Perform the row operation(s) on the given augmented matrix.(a) R2 = -4r1 + r2(b) R3 = 2r1 + r3(c) R3 = 3r2 + r3
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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A. Not a real number
B. - 
C. 
D. - 
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A. 
B. 
C. 
D. The inverse does not exist.
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A. 7.42 mi B. 4.35 mi C. 6.62 mi D. 11.27 mi
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A. -243 B. -343 C. -729 D. 343
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