Simplify the expression.(-4)-2

A.
B. - 
C. -16
D. 16


Answer: A

Mathematics

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Solve the problem.Find the moment of inertia of a sphere of radius 10 and constant density ? about a diameter.

A. ??
B. ??
C. 60000??
D. ??

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Find the exact area of the surface obtained by rotating the given curve about the x-axis.

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Write the equation in standard form for an ellipse centered at (h, k). Identify the center and the vertices.4x2 - 20x + 16y2 + 16y + 25 = 0

A. C; V +  = 1
B. C; V +  = 1
C. C; V +  = 1
D. C; V +  = 1

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Simplify the expression. ÷ 

A.  
B.
C.  
D. z + 3

Mathematics