Solve the inequality. Express your answer using interval notation. Graph the solution set.|x| < -3
A. (-?, -3]
B. (-3, 3)
C. (-?, -3) ? (3, ?)
D. ?
Answer: D
Mathematics
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Graph the polar equation.r = 3?
A. 
B. 
C. 
D. 
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Find the volume of the indicated region.the region bounded by the paraboloid 
and the xy-plane
A. 432? B. 648? C. 72? D. 108?
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Introduce slack variables as necessary and write the initial simplex tableau for the problem.Maximize z = x1 + 2x2 subject to: x1 + x2 ? 20 3x1 + 2x2 ? 40 2x1 + 3x2 ? 60 x1 ? 0, x2 > 0 
A. 
B. 
C. 
D. 
Mathematics
Graph the equation. Identify the coordinates of the vertex.y = x2 - 1
A. (1, 0) B. (0, 1) C. (-1, 0) D. (0, -1)
Mathematics