Asked by Anonymous

Calculate s50 for the arithmetic sequence defined by (an)=(71-2.3n)
Answered by Reiny
do it the same way I just showed you
Answered by Anonymous
I’m having trouble would I do a(50)=71-(2.3n)(50)
Answered by Reiny
a(50)=71-(2.3n)(50)

doesn't even remotely resemble the formula I gave you.

What was your a ? What was your d ??
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