Introduce slack variables as necessary and write the initial simplex tableau for the problem.Maximize z = 2x1 + x2 subject to: x1 + x2 ? 52 3x1 + x2 ? 180 x1 ? 0, x2 ? 0 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the problem.Find the moment of inertia Iy of the region of constant density 
bounded by the paraboloid 
and the xy-plane.
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics
Solve the equation.(x - 7)(x + 8) = 0
A. 8 or -7 B. -7 or -8 C. 7 or 8 D. 7 or -8
Mathematics
Rewrite the quadratic equation in the form ax2 + bx + c = 0, then identify a, b, and c. 3x2 = 12x - 12
A. a = 3, b = -12, c = 12 B. a = 3, b = 12, c = 12 C. a = 3, b = 12, c = -12 D. a = 3, b = -12, c = -12
Mathematics
Perform the indicated operation. Write the result in the form a + bi.(-8 + 9i) - 5
A. 13 - 9i B. -3 + 9i C. -3 - 9i D. -13 + 9i
Mathematics