Question

How many terms are in an arith. sequence if the 1st term is 100 and the last term is -14 and d= -2???

Answer 1

use this formula:
\[\huge a+(n-1)d\]
where a=100,d=-2

Answer 2

@jm432 can you solve it??

Answer 3

http://openstudy.com/study#/updates/51bd5ca6e4b0cfd1f31b3953

Answer 4

Already solved...