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 - y + 2z + w = 1y + z = 4z - w = 1
A. {(2, 3, 1, w)}
B. {(-2, 2, 2, 1)}
C. ?
D. {(2 - 4w, 3 - w, 1 + w, w)}
Answer: D
Mathematics
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Write in standard notation.
A. 800 B. 80 C. 0.08 D. 8000
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Provide an appropriate response.Simplify: 2(-a - 2) + 3
Fill in the blank(s) with the appropriate word(s).
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Graph the parabola.y = 
(x - 4)2 + 2
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation. Simplify if possible.
- 
A. 
B. 
C. 
D. 
Mathematics