Provide an appropriate response.Suppose that you are solving a system of three linear equations by the Gauss-Jordan method and obtain the following augmented matrix. 
What row transformation would you perform next?
A. Add -8 times row 1 to 7 times row 3.
B. Add -8 times row 2 to row 3.
C. Multiply row 3 by 
.
D. Add 
times row 2 to row 3.
Answer: B
Mathematics
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A. One B. Two C. None
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Solve.A mountain in the Great Smoky Mountains National Park has an elevation of 5497 feet above sea level. A gap in the Atlantic Ocean has an elevation of 24,476 feet below sea level. Represent the difference in elevation between these two points.
A. 13,482 ft B. 29,973 ft C. 35,470 ft D. 18,979 ft
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Solve the equation.
+ 3 = 12
A. 
B. ?
C. {380}
D. 
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