franklinal franklinal

21-03-2017
Mathematics

Answered

What is the sum of the first 21 terms of the arithmetic series?

−5+(−3)+(−1)+1+...

i need help ASAP!!!

gave 50 pts!

Verified Answer :

Anonymous Anonymous

21-03-2017

I'm confused, but if you want me to add all the numbers I got negative 8.

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Becky81 Becky81

21-02-2019

Answer:

The answer is 315

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