Solve the system.x - y + 3z = -14-4x + 4y - 12z = -3x + 2y + z = -13
A. (0, -5, -3)
B. (-3, -5, 0)
C. No solution
D. (-3, 0, -5)
Answer: C
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Solve the problem.A football team gained 21 yards on one play, lost 30 yards on another, and gained 40 yards on the last play of the first half. They had already gained 212 yards during the half. What was the total yardage gain for the first half?
A. 303 yards B. 181 yards C. 273 yards D. 243 yards
Look at the circuit shown below and solve for F.
a. (A + B) ú (B + C)
b. (A ú B) + (B ú C)
c. (A + B) ú C
d. A ú (B + C)
e. B ú (A + C)
Draw Venn diagrams for the relationship
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A. ?
B. ?
C. ?
D. ?
E. ?
Write the basic solution for the simplex tableau determined by setting the nonbasic variables equal to 0. 
A. x1 = 0, x2 = 0, x3 = 0, x4 = 0, x5 = 4, z = 1 B. x1 = 0, x2 = 0, x3 = 8, x4 = 9, x5 = 0, z = 1 C. x1 = 8, x2 = 0, x3 = 0, x4 = 9, x5 = 0, z = 8 D. x1 = 8, x2 = 9, x3 = 8, x4 = 9, x5 = 0, z = 8