Simplify the expression by combining like terms.6y2 - 13y + 15y2

A. 21y4 - 13y
B. 21y + 13y2
C. 21y2 - 13y
D. 19y2 + 15y

Answer: C

Mathematics

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A.
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A. -5x + y B. -5x + 5y C. -5x - 5y D. -5xy

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Solve using the addition principle.-10 = b - 11

A. -21 B. 1 C. 21 D. -1

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Find the vertical asymptote(s), if any, of the graph of the rational function. h(x) = 

A. x = 2, x = -9 B. y = 2, y = -9 C. x = 10, x = -10 D. x = -2

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