Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination.8w + 8x - 5y - 4z = 207w + 6x - 8y - 4z = -18w - 8x + 6y + 5z = -34-5w - 4x + 8y + 8z = 1
A. (1, 5, 4, 2)
B. (-1, 4, -5, 2)
C. (-1, 5, 4, -2)
D. No solution
Answer: C
Mathematics
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A. 
, - 
B. 
+ 360°, 
- 360°
C. 
, - 
D. 
, - 
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Solve the inequality. Write the solution set in interval notation.
< 
A. 
B. (-?, ?)
C. 
? 
D. 
? 
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Find the product.n2
A. 30n4 - 
n3 - 
n2
B. 30n4 + 
n3 - 
n2
C. 30n4 - 
n3 - 
n2
D. 30n4 - 
n3 + 
n2
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Find the degree of the given polynomial.z6y + 1 - x6 + z5x3
A. 8 B. 3 C. 7 D. 6
Mathematics