Solve the system of equations. x + y + z = 7 x - y + 2z = 7 5x + y + z = 11
A. {(1, 4, 2)}
B. {(1, 2, 4)}
C. {(4, 2, 1)}
D. {(4, 1, 2)}
Answer: B
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Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__10612191744__f1q59g7.jpg" alt="" style="vertical-align: -4.0px;" /> 
Rwhere R is the parallelepiped bounded by the planes 
A. 5
B. 
C. 30
D. 
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