Question

PLEASE HELP MEDAL WILL BE REWARDED!!!!!
Write the sum using summation notation, assuming the suggested pattern continues.

-1 + 2 + 5 + 8 + ... + 44

Answer 1

\[\sum_{i=1}^{i=16}-4+3i\]
i think

Answer 2

Hmm, it doesnt look like its one of the answers i can choose from, ill give you all 4 again...

Answer 3

\[\sum_{n=0}^{15}-3n\]

Answer 4

no, that one doesn't seem right

Answer 5

\[\sum_{n=0}^{15}(-1+3n)\]

Answer 6

yea, that one

Answer 7

\[\sum_{n=0}^{\infty}-3n\]

Answer 8

no cause it doesn't go up to infinity

Answer 9

OR! \[\sum_{n=0}^{\infty}(-1+3n)\]

Answer 10

So it has to be the second one?

Answer 11

yep

Answer 12

it's the same thing to what i wrote but the n started at 0 not 1

Answer 13

Oh okay, thank you so much, again :)

Answer 14

np

Answer 15

@Chelsea04 give me like 5 minutes i will have more questions!

Answer 16

sure :) this is good revision for me :)