Solve the system using matrices. 3x - 8y- z = -41 x + 3y + 7z = 57 -3x + y + z = -1
A. (4, 5, 6)
B. No solution
C. (-4, 6, 8)
D. (4, 6, 5)
Answer: D
Mathematics
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A. - 
, 0
B. 
, 0
C. - 
D. 
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A. 
B. 
C. 
D. 
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Factor.x7 + 4x6 - 21x5
A. x-3(x2 + 4x - 21) B. x5(x - 3)(x + 7) C. x5(x - 3)(x - 7) D. x5(x + 3)(x + 7)
Mathematics
Identify the operation to perform to the equation to isolate the variable.
y = 
A. Multiply by 
or Divide by 2
B. Multiply by 9 or Divide by 9
C. Multiply by 
or Divide by 
D. Multiply by 2 or Divide by 
Mathematics