Use the Gauss-Jordan method to solve the system of equations.5x + 2y + z = -112x - 3y - z = 177x - y = 12
A. (0, -6, 1)
B. (-2, 0, -1)
C. (1, -5, 0)
D. No solution
Answer: D
Mathematics
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Evaluate, if possible
A. 
B. 
C. 0
D. 
Mathematics
Simplify.9 + (-6) - (-13) + 3
A. -7 B. 5 C. 19 D. 13
Mathematics
Solve for the variable.2(x + 1) = -3(x + 6) + 21
A. x = 
B. x = 
C. x = - 28
D. x = - 5
Mathematics
The Acme Class Ring Company designs and sells two types of rings: the VIP and the SST. They can produce up to 24 rings each day using up to 60 total man-hours of labor. It takes 3 man-hours to make one VIP ring, versus 2 man-hours to make one SST ring.How many of each type of ring should be made daily in order to maximize the company's profit, if the profit on a VIP ring is $30 and the profit on an SST ring is $40?
A. 8 VIP and 16 SST B. 0 VIP and 24 SST C. 16 VIP and 8 SST D. 12 VIP and 12 SST
Mathematics