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OpenStudy (rainbow_dash):
Find the sum of the given arithmetic series. 26 + 19 + 12 + 5 + ... + (–37)
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OpenStudy (amistre64):
the only thing missing that we need to determine is the number of terms
OpenStudy (rainbow_dash):
already got it but i'll medal you for the help :)
OpenStudy (amistre64):
\[a_n=a_1+d(n-1)\] \[-37=26+(19-26)(n-1)\]
OpenStudy (amistre64):
hmmm, thanx :)
OpenStudy (rainbow_dash):
No, thank you.
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OpenStudy (rainbow_dash):
:)
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