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PLEASE HELP!!!!! URGENT!!!!
Please show steps for the attached problem . . .
 one year ago
 one year ago
PLEASE HELP!!!!! URGENT!!!! Please show steps for the attached problem . . .
 one year ago
 one year ago

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BarlowGirlBest ResponseYou've already chosen the best response.1
Evaluate  dw:1339003375467:dw
 one year ago

BarlowGirlBest ResponseYou've already chosen the best response.1
I got an answer of 91, but the answer choices for the problem don't include that as an answer.
 one year ago

dpaIncBest ResponseYou've already chosen the best response.2
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 = ???
 one year ago

BarlowGirlBest ResponseYou've already chosen the best response.1
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?
 one year ago

dpaIncBest ResponseYou've already chosen the best response.2
you're add k^2 so starting from k=4 to k= 9, you add 4^2 + 5^2 + ... 9^2
 one year ago

dpaIncBest ResponseYou've already chosen the best response.2
you should get 271 as the sum of those squares
 one year ago

BarlowGirlBest ResponseYou've already chosen the best response.1
Here's the equation for a quadratic series, in case you'd like it: dw:1339003827921:dw
 one year ago

BarlowGirlBest ResponseYou've already chosen the best response.1
Oh, I see what you're saying. Why doesn't the formula work for this problem, though?
 one year ago

dpaIncBest ResponseYou've already chosen the best response.2
that is correct.. but you'll have to subtract k=1 to k=3...dw:1339003974534:dw
 one year ago

BarlowGirlBest ResponseYou've already chosen the best response.1
Sorry, I'm a bit confused  what does that mean  "you'll have to subtract k=1 to k=3..." ?
 one year ago

dpaIncBest ResponseYou've already chosen the best response.2
so you can use that formula.... but isn't it easier to just write down those 6 terms and add them all up?
 one year ago

BarlowGirlBest ResponseYou've already chosen the best response.1
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.
 one year ago

BarlowGirlBest ResponseYou've already chosen the best response.1
Oh, okay. Thank you very much for your explanation! You've been most helpful! =)
 one year ago
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