Solve the system of equations by Gauss-Jordan elimination.
A. {(-2, 1, -3)}
B. {(1, -3, -2)}
C. {(-2, -3, 1)}
D. ?
Answer: C
Mathematics
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Find the prime factorization of the number. ? 150 ?
A.
B.
C.
D.
E.
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Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = 5xi + 5yj + 2k , S is the surface cut from the bottom of the paraboloid z = x2 + y2 by the plane 
direction is outward
A. 16? B. -144? C. 88? D. 72?
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Solve the problem.An upholsterer wants to reupholster 180 chairs for a banquet hall. If each chair needs 
pound of brass tacks, how many pounds of brass tacks are needed?
A. 30 pounds B. 1080 pounds C. 3 pounds D. 108 pounds
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Expand. Assume that all variables represent positive real numbers.logb yz4
A. logb y + logb4z B. 4 logb y + 4 logb z C. 4 logb yz D. logb y + 4 logb z
Mathematics