Question

PLEASE HELP MEDAL WILL BE GIVEN NEED HELP ASAP.
write the sum using summation notation, assuming the suggested pattern continues -1+2+5+8+...+44

Answer 1

@aaronq @Compassionate @confluxepic

Answer 2

@ganeshie8 @mathstudent55

Answer 3

Hint:
\(-1+3(0)=-1
\\ -1+3(1)=2\\
-1+3(2)=5\\
-1+3(3)=8
... \)

Do you see the pattern? Notice how you can replace the number that keeps changing by a variable to be used in summation notation

Answer 4

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

Answer 5

That is almost it! :) The sum ends at 44 though, it doesn't continue till infinity, so you need to figure out the number at which is stops.

This can easily be done with a small equation: \(-1+3n=44 \)

Answer 6

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

Answer 7

awesome :)!!

Answer 8

sweet okay thank you

Answer 9

np