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Matrices and Row Operations Answers

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21
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Which operation can be used with the augmented matrix below?

Question illustration
A
Switch column 1 and column 2.
B
Multiply row 3 by 0.
C
Add row 2 and column 3.
D
Multiply row 2 by –1 and add it to row 3.
22
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Kyle wrote a matrix to represent a system of equations. The matrix is shown below.Which of the following describes the solution to the system of equations?

Question illustration
A
consistent
B
dependent
C
inconsistent
D
independent
23

Which matrix represents the solution to the system of equations below?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D

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