SOLUTION: Write a variable expression to describe the rule for each sequence. Then find the hundredth term. 1. 3, 6, 9, 12, ... i am really really really really really really confused.

Question 428621: Write a variable expression to describe the rule for each sequence. Then find the hundredth term.
1. 3, 6, 9, 12, ...
i am really really really really really really confused. please help??
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Write a variable expression to describe the rule for each sequence. Then find the hundredth term.
1. 3, 6, 9, 12, ...
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An arithmetic sequence with a = 1 and d = 3
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a(n) = 1 + (n-1)3 where n is the number of the term.
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a(100) = 1 + 99*3
a(100) = 1 + 297
a(100) = 298
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Cheers,
Stan H
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