Factor completely. If a polynomial cannot be factored, say it is prime.xy + 10x - 2y - 20
A. (x + 10)(y - 2)
B. (x - 10)(y + 2)
C. (y - 10)(x + 2)
D. (y + 10)(x - 2)
Answer: D
Mathematics
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Solve the problem.Find the moment of inertia about the z-axis of a region of constant density ? enclosed by the paraboloid 
and the xy-plane.
A. 
??
B. 
??
C. 
??
D. 
??
Mathematics
Convert to decimal notation.6.65 × 10-4
A. 0.000665 B. 0.0000665 C. 0.00665 D. -665,000
Mathematics
Solve the equation.
= 
A. 
B. 
C. 
D. 
Mathematics
Add or subtract as indicated.
A. 2.000 B. 0.763 C. 0.637 D. 1.637
Mathematics