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. 5x - y + z = 8 7x + y + z = 6
A. (-z + 3, 4z + 7, z)
B. 
C. no solution
D. 
Answer: D
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Ms. Bailey consumed 1770 cc of liquid during a 24-hour period. Her urine output was measured to be 250 mL, 125 mL, 150 mL, 200 mL, and 275 mL. Determine her fluid balance or imbalance.
A. 70 cc more intake than output B. 770 cc more output than intake C. 70 cc more output than intake D. 770 cc more intake than output
Translate the sentence to an equation using x as the variable. Do not solve the equation.six more than a number is equal to sixteen.
A. 6 - x = 16 B. x = 16 + 6 C. x - 6 = 16 D. x + 6 = 16
Solve.Suppose that the sales of a particular brand of appliance satisfy the relationship 
where S(x) represents the number of sales in year x, with x = 0 corresponding to 1990. For what years will sales be between 2200 and 3250?
A. Between 1992 and 1999 B. Between 3 and 10 C. Between 1992 and 1998 D. Between 1991 and 1998
Divide.(x2 + 10x + 16) รท (x + 2)
A. x2 + 8 B. x3 - 14 C. x - 14 D. x + 8