Multiply.-2( + 3)

A. -2 - 6y
B. -2y + 
C. -2y + 6
D. -2y - 6


Answer: D

Mathematics

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In the given voting system, the weights represent, in order, voters A, B, C, and so on. Determine which voters are critical in the indicated coalition.[12 : 1, 3, 5, 7] ; coalition {B, C, D}

A. Only C and D are critical. B. Only D is critical. C. Only B is critical. D. All are critical.

Mathematics

Solve the problem.Find the equation for the tangent plane to the surface    at the point  

A. 7x - 2y + 10z = 29 B. 7x - 2y + 10z = 15 C. 7x + 2y + 20z = 15 D. 7x + 2y + 20z = 29

Mathematics

Give a geometric description of the set of points whose coordinates satisfy the given conditions.x = -6, z = 5

A. The point (-6, 5) B. The line through the point (-6, 5, 0) and parallel to the z-axis C. The line through the point (-6, 0, 5) and parallel to the y-axis D. All points in the x-z plane

Mathematics

Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = - x2 + 7x - 7

A. Increasing on ; decreasing on 
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C. Increasing on ; decreasing on 
D. Increasing on ; decreasing on 

Mathematics