Use matrices to solve the system of equations (if possible). Use Gaussian elimination with back-substitution or Gauss-Jordan elimination.
A) x = 5, y = –2, z = –6
B) x = 2, y = –5, z = 6
C) x = –2, y = –5, z = 6
D) no solution
E) x = 2, y = 5, z = 6
E) x = 2, y = 5, z = 6
Mathematics
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- 
A. 17
B. 18
C. 18
D. 19
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A. 
(z + 5)
B. z + 5
C. (z + 5)2
D. 
+ 
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Graph the numbers on the real number line.x < -3
A. 
B. 
C. 
D. 
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Factor.4a3 + 8a2 - 60a
A. 4a(a - 5)(a - 3) B. 4a(a - 5)(a + 3) C. 4a(a + 5)(a - 3) D. 4a(a + 5)(a + 3)
Mathematics