Use Gauss-Jordan elimination to solve the linear system and determine whether the system has a unique solution, no solution, or infinitely many solutions. If the system has infinitely many solutions, describe the solution as an ordered triple involving variable z. x + y + z = 92x - 3y + 4z = 7
A. 
B. no solution
C. 
D. 
Answer: D
Mathematics
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Solve the problem.Find the difference in altitude between an ocean floor 
below sea level and an ocean canyon 
below sea level.
A. -292 feet B. 152 feet C. 292 feet D. -152 feet
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Write the improper fraction and mixed number represented by the shading.
A. 
; 1
B. 
; 1
C. 
; 1
D. 
; 1
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Solve the problem.An experienced accountant can prepare a tax return in 8 hours. A novice accountant can do the job in 14 hours. How long will it take them to do the job working together?
A. 
hr
B. 
hr
C. 
hr
D. 
hr
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Evaluate the expression.8 ? 2 + 18 ÷ (8 - (3 + 2))
A. 21 B. 22 C. 23 D. 24
Mathematics