Solve the system of equations.x1 + 3x2 + 2x3 = 11 4x2 + 9x3 = -12 x3 = -4
A. (1, 6, -4)
B. (-4, 6, 1)
C. (-4, 1, 6)
D. (1, -4, 6)
Answer: A
Mathematics
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, n = 4
A. 
B. 
C. 
D. 
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Write the decimal as a percent.0.44
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Solve the problem.Find the center of mass of the upper half of a solid ball of radius 2 centered at the origin if the density at any point is proportional to the distance from that point to the 
A. (
, 
, 
) = 
B. (
, 
, 
) = 
C. (
, 
, 
) = 
D. (
, 
, 
) = 
Mathematics