Simplify the algebraic expression by combining like terms.-7y + (-5y)

A. -2y
B. -12y
C. -12y2
D. 12y


Answer: B

Mathematics

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Find the length of the curve with the given vector equation.r(t) = 4ti  + j  + k; -9? t ? 6

A. -75 B. 75 C. 375 D. -15

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A.

B.

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Find any vertical asymptotes as well as the location of any holes in the graph of the given rational function.f(x) = 

A. vertical asymptotes: x = 5, x = 2; hole: (7,0) B. vertical asymptotes: x = -5, x = -2; holes: none C. vertical asymptotes: x = -7, x = 7; holes: none D. vertical asymptotes: x = -5, x = -7; hole: (7,0)

Mathematics