Use the Gauss-Jordan method to solve the system of equations.
A. x = -3, y = -3
B. x = -3, y = 3
C. x = 3, y = -3
D. No solution
Answer: C
Mathematics
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A. Yes B. No
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A. 
B. 
C. 
D. 
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Solve.-5 < x + 9 < 7
A. (-14, 16) B. (-14, -2) C. (4, 16) D. (-16, -4)
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Find dy/dx by implicit differentiation.
= x2 + y2
A. 
B. 
C. 
D. 
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