anonymous
  • anonymous
PLEASE HELP!!!!! URGENT!!!! Please show steps for the attached problem . . .
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.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
Evaluate - |dw:1339003375467:dw|
anonymous
  • anonymous
I got an answer of 91, but the answer choices for the problem don't include that as an answer.
anonymous
  • anonymous
since you only have 5 terms, might as well just add them up... 4^2 + 5^2 + 6^2 + 7^2 + 8^2 + 9^2 = 16 + 25 + 36 + 49 + 64 + 81 = ???

Looking for something else?

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

More answers

anonymous
  • anonymous
Wait a second, though - aren't there 6 terms (4,5,6,7,8,9)? Don't you include the the k= number AND the number above sigma?
anonymous
  • anonymous
you're add k^2 so starting from k=4 to k= 9, you add 4^2 + 5^2 + ... 9^2
anonymous
  • anonymous
you should get 271 as the sum of those squares
anonymous
  • anonymous
Here's the equation for a quadratic series, in case you'd like it: |dw:1339003827921:dw|
anonymous
  • anonymous
Oh, I see what you're saying. Why doesn't the formula work for this problem, though?
anonymous
  • anonymous
that is correct.. but you'll have to subtract k=1 to k=3...|dw:1339003974534:dw|
anonymous
  • anonymous
|dw:1339004031135:dw|
anonymous
  • anonymous
Sorry, I'm a bit confused - what does that mean - "you'll have to subtract k=1 to k=3..." ?
anonymous
  • anonymous
so you can use that formula.... but isn't it easier to just write down those 6 terms and add them all up?
anonymous
  • anonymous
Yes, I do think it's easier, but I wanted to figure out how I could use it with the formula. I don't believe my teacher taught us to subtract the k values - that's why I'm confused.
anonymous
  • anonymous
|dw:1339004126864:dw|
anonymous
  • anonymous
Oh, okay. Thank you very much for your explanation! You've been most helpful! =)
anonymous
  • anonymous
yw....:)

Looking for something else?

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