Xavier performs the elementary row operation represented by Ri - R, on matrix A.
1 answer:
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Answer:
Step-by-step explanation:
For question #1:
For question #2:
Answer:
C
Step-by-step explanation:
We have:
Where a<0.
We would like to solve for a. So, let’s divide both sides by a.
Notice that a<0. Therefore, a is negative. Hence, we must flip the sign since we are dividing by a negative. This yields:
Now, we will subtract b from both sides. Therefore, our inequality is:
Hence, our answer is C.