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OpenStudy (anonymous):
Find S10 for the series 2 + 7 + 12 + 17 +...
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OpenStudy (anonymous):
\[S_{10} = \frac n2[2a_1 + (n - 1)d]\]
OpenStudy (anonymous):
whats the anwser lol plz and thank you
OpenStudy (anonymous):
I'm sorry, but we're not allowed to just give you the answer...I can simplify it further though. \[S_{10} = \frac{10}{2}(2(2) + (10 - 1)5\]\[S_{10} = 5(4 + 45)\]\[S_{10} = 5(49)\]\[S_{10} = ?\]
OpenStudy (anonymous):
ohhh ok ty
OpenStudy (anonymous):
np :)
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