Multiple Choice
Solve the system, if possible. 
A) x = 10, y = 2, z = 3
B) x = -10, y = -2, z = -3
C) x = 3, y = 10, z = -3
D) x = 12, y = 9, z = -3
E) no solution; inconsistent system
Correct Answer:
Verified
Correct Answer:
Verified
Q11: Find 9A. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg" alt="Find 9A.
Q12: Solve the system using Gaussian elimination. <img
Q13: Solve the system using Gauss-Jordan elimination. <img
Q14: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg" alt=" Find the cofactor
Q15: Find A - B. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg" alt="Find
Q17: Determine which ordered pair is a solution
Q18: Find the inverse of the matrix. <img
Q19: Solve the system, if possible. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg"
Q20: Solve the system by substitution, if possible.
Q21: Solve the system, if possible. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB8693/.jpg"