Find an expression for the nth term of the arithmetic sequence.- , - , - , - , - , . . .

A. an = - 
B. an = - 
C. an = - 
D. an = - 

Answer: C

Mathematics

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A. 4x2 + 36xy + 81y2 B. 2x2 + 36xy + 81y2 C. 2x2 + 81y2 D. 4x2 + 81y2

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A. Yes; yes B. Yes; no C. No

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A. 31.025 B. 6.1 C. 12.41 D. 1.55

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