Simplify the exponential expression.(-4x5y-6)(2x-1y)

A.
B.
C. -8x4y7
D.

Answer: B

Mathematics

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Find the surface area of the surface S.S is the portion of the surface 3x + 4z = 2 that lies above the rectangle 3 ? x ? 10 and  in the 

A.
B. 70
C.
D. 39

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Mathematics

Find the center and radius of the circle with the given equation. (x + 2.4)2 + 2 = 

A. (0.75, -2.4); r = 
B. (-2.4, 0.75); r = 
C. (0.75, 2.4); r = 
D. (2.4, -0.75); r = 

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Mathematics

Perform the indicated operation and simplify. -  

A.
B. 7x + 62
C.
D.

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Mathematics

Graph the following system to find the solution.

What will be an ideal response?

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Mathematics