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Mathematics 16 Online
OpenStudy (anonymous):

Check my answer??? Find S5 for the series -2 + -10 + -50 + -250 +... I think it's -1250

OpenStudy (freeg13):

so far it is 208

OpenStudy (anonymous):

what?

OpenStudy (freeg13):

when your adding negatives you change the signs like instead of -2 + -10 you do 2 - 10 it is the same answer just easier.

OpenStudy (anonymous):

okay but I thought the 5th one in the series was -1250

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