Write a matrix equation equivalent to the system of equations. 8w + 8x - 2y - z = -8 8w - 8x + 6y - z = -8-6w - 5x - y - 8z = 8  w - 8x - 4y + 8z = 6

A.
  =  
B.
  =  
C.
  =  
D.
  =  


Answer: C

Mathematics

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Find the Jacobian for the given transformation. 

A. 24u2 B. 24v2 C. 12v2 D. 12u2

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Find y".y =  tan(-10x - 4)

A. 50 sec2(-10x - 4) tan(-10x - 4)
B.  sec(-10x - 4)
C.  sec2(-10x - 4) tan(-10x - 4)
D. -  sec2(-10x - 4)

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Find the difference.-42 - 42

A. -126 B. 84 C. -84 D. 0

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Find the LCM of the set of numbers.30, 20, and 70

A. 420 B. 210 C. 60 D. 140

Mathematics