anonymous
  • anonymous
Find the 9th term of the arithmetic sequence. a7 = -42 and a11 = -28; a9 = ____.
Mathematics
chestercat
  • chestercat
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this
and thousands of other questions

campbell_st
  • campbell_st
so a really simple solution to this is to find the average of the 7th and 11th term, the average will be the 9th term (-42 + (-28))/2 =
anonymous
  • anonymous
-35?
campbell_st
  • campbell_st
the reason for using this method is to recognise that (7 + 11)/2 = 9 so the average of the 2 terms is the 9th term a quick and dirty solution

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

campbell_st
  • campbell_st
-35 is correct
anonymous
  • anonymous
thanks

Looking for something else?

Not the answer you are looking for? Search for more explanations.