mgirl211
Find the indicated sum for the arithmetic series.
S18 for 13 + 2 + (9) + (20) + ...



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lilg132
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13 + (18  1) 11
s18 = 174

mgirl211
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That is not an option :/ the only options are 873, 1528, 256, and 1449

lilg132
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hmm thats strange

mgirl211
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Yeah, Thanks anyways though. I appreciate it greatly.

lilg132
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are you sure you typed the question correctly? if i understand correctly your looking for the 18th term?

mgirl211
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No, I'm looking for the sum of the series to the 18th term

lilg132
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ok let me work it out give me a moment

mgirl211
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Take your time

lilg132
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1449

mgirl211
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Thank you :)

lilg132
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remember to click good answer Megan :p

lilg132
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your welcome