Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, let the last variable be the arbitrary variable.x + 3y - 2z - w = 184x + y + z + 2w = 22-3x - y - 3z - 2w = -11 x - y - 3z - 2w = 1
A. {(18, 22, -11, 1)}
B. {(3 + w, 4 - 2w, -4 + 2w, w)}
C. {(3, 4, -4, 5)}
D. {(2, 6, -8, 7)}
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Perform the indicated operations and simplify the result so there are no quotients.2 tan ? - (1 + tan ?)2
A. - sec2? B. 1 - sin ? C. 0 D. 1
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Rationalize the denominator.
A. 10
B. 10
C. 
D. 1
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Provide an appropriate response.What is wrong with adding decimal numbers in the following example?25 + 0.23 = 0.48
What will be an ideal response?
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