Use the Gauss-Jordan method to solve the system of equations. x + 3y + 2z = 11 4y + 9z = -12x + 7y + 11z = -11
A. (1, 6, -4)
B. (0, 3, 1)
C. (7, -1, -1)
D. No solution
Answer: D
Mathematics
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A. quadrant I B. quadrant II C. quadrant III D. quadrant IV
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Find the sum.
A. -1,435.5 B. -1,485 C. -1,402.5 D. -1,287
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Perform the division.
A. r + 4 B. r2 + 4 C. r - 4 D. r2 - 4
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Determine two pairs of polar coordinates for the point with 0° ? ? < 360°.(3, -3)
A. (3
, 315°), (-3
, 135°)
B. (3
, 45°), (-3
, 225°)
C. (3
, 135°), (-3
, 315°)
D. (3
, 225°), (-3
, 45°)
Mathematics