Find the derivative.y = 13x-2 - 5x3 - 7x

A. -26x-3 - 15x2 
B. -26x-1 - 15x2
C. -26x-1 - 15x2 - 7
D. -26x-3 - 15x2 - 7


Answer: D

Mathematics

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A. cos x = - , tan x = - 
B. cos x = - , tan x = 
C. cos x = , tan x = - 
D. cos x = , tan x = 

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Perform the indicated operation.(-2x2y4)(-5x3y2)

A. 10xy5 B. 10xy6 C. 10x5y6 D. 10x6y5

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A focus group of 41  people for ABC TV were asked to rank the government spending priorities of education (E), military spending (M), health care (H), immigration (I), and lowering taxes (T). Here are the preferences: ? (TMIHE) (EMTIH) (IETHM) (HETMI) 14 9 9 9 ? Suppose that the losing issues of immigration, health care, and military spending are removed from the table. Now, who is the winner using the Borda count method? ?

A. ?T B. ?E C. ?No winner.

Mathematics

Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = , ? < ? < Find sin(2?).

A.
B.
C. - 
D. - 

Mathematics