Ace school

with brainly

  • Get help from millions of students
  • Learn from experts with step-by-step explanations
  • Level-up by helping others

A community for students.

find the sum of the arithmetic sequence having the data given. a1 = 5, an = 3, n = 20

Mathematics
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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

Do you know which formula to apply?
I have no idea, I missed a few days of class and I came back to a whole new lesson. Kinda just tryin to get caught up right now
S_n = n ( a_1 + a_n ) / 2

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

chloro right
Do you know how to plug in?
nuh uh :/
Try a1 = ?
that easy
i can prove formula
Just go step by step!
no, sum sequense have formula, not step by step
@Adam1994 pls let me know a1?
a1=5
a_n?
ok, i know a litle english
a_n = 3
Would you double check this problem, I believe it's wrong!
Since n = 20 => we're looking for S_20
S_20 = 20 ( a_1 + a_20 ) / 2
Anyway, this is the formula for arithmetic Sum, just memorize it for your own benefit!

Not the answer you are looking for?

Search for more explanations.

Ask your own question