Question

the first term of an arithmetic progression is -3 and the common difference is 8. What is the 28th term

Answer 1

will give medal

Answer 2

I think there are calculators to help

Answer 3

Hm, someone else would be better able to help you answer this but I can help out until they come a long I think

Answer 4

So evaluating our information, our first term is -3 and all terms have a common difference of 8

Answer 5

So in essence what you want to do is add -3+8 to get your second term which would be 5, you then add 5+8 to get your third term, 13. You need to do this until you get to your 28th term. There is a summation formula you can use to do this but I've forgotten what it is.

Answer 6

\[t _{n}=a+\left( n-1 \right)d\]
a=first term
d=common difference.
n=number of terms.

Answer 7

here a=-3
n=28
d=8
find \[t _{28}\]

Answer 8

Thats the one^