Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.6x + 3y + 2z = 4-12x - 6y - 4z = -86x + 12y + 6z = 6
A. 
B. 
C. 
D. No solution
Answer: C
Mathematics
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A. -6 - 13i B. -14 - 13i C. -6 + 3i D. -14 + 3i
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Write the rate as a fraction in simplest form. Be sure to include the units in your answer.6 cars for 18 people
A. 
B. 
C. 
D. 
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Multiply.(-5)(-3)(-5)(-4)
A. 300 B. 60 C. -300 D. -60
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Solve. Round to the nearest tenth if necessary.In a recent survey of 16 people, 8 said that their favorite color of car was white. What percent of the people surveyed liked white cars?
A. 3% B. 51% C. 50% D. 2%
Mathematics