anonymous
  • anonymous
Find an equation for the nth term of the arithmetic sequence. -15, -6, 3, 12, ...
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
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.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
please explain how you got it
hartnn
  • hartnn
can you find the common difference of that given series? or know what common difference is?
anonymous
  • anonymous
9 @hartnn

Looking for something else?

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

More answers

hartnn
  • hartnn
thats correct!
hartnn
  • hartnn
so just use this formula \(\Large a_n = a_1 + (n-1)d\) where d = common difference = 9 a1 = 1st term = -15 plug these values in, and tell me what u get :)
anonymous
  • anonymous
so an= -15 + 9(n-1)?
hartnn
  • hartnn
good! now simplify that. distribute 9 to (n-1)
anonymous
  • anonymous
9n-9?
anonymous
  • anonymous
oh ok i got it, Thank you!
anonymous
  • anonymous
can you help with summation though? ill open another question
hartnn
  • hartnn
yes, then we had -15 so finally, \(\large a_n = 9n-24\) welcome ^_^ and sure, open another question :)

Looking for something else?

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