Solve the system of equations using matrices. Use Gaussian elimination with back-substitution. 5x - y + 7z= 77 2x + 8z= 64 7y + z= 41
A. {(8, 5, 6)}
B. {(-8, 5, 16)}
C. {(8, 6, 5)}
D. {(-8, 16, 5)}
Answer: A
You might also like to view...
Use a determinant to find an equation of the line passing through the points. ? (-5, 3), (1, 1) ?
A. 2x -6y + 8 = 0 B. 2x + 6y + 8 = 0 C. 2x -6y - 8 = 0 D. 2x + 6y - 8 = 0 E. 2x + 6y - 8 = 5
Fill in the blank with one of the words or phrases listed below.
The process of writing a rational expression in lowest terms is called 
.
A. rational expression B. reciprocals C. least common denominator D. simplifying
Fill in the blank with one of the words or phrases listed below. 
The 
used to write numbers are 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.
A. divisor B. digits C. dividend D. difference
Use the Remainder Theorem and synthetic division to find each function value. Verify your
answers using another method.
?
?
A. -1,237 B. -1,231 C. -1,234 D. -1,235 E. -1,233