Question

Please Help!
Write the sum using summation notation, assuming the suggested pattern continues.

-3 + 6 + 15 + 24 + ... + 132

Answer 1

looks like you are adding 9 each time

Answer 2

how many terms all together?

Answer 3

Seem right?

Answer 4

yeah, except for that weird infinity up top
you cannot add all that stuff up

Answer 5

would it make more sense if a 15 was on top instead of the infinity?

Answer 6

it would if there were 15 terms, yes
are there three dots after 132 or does it just end there?

Answer 7

it ends at 132

Answer 8

ok then don't go up to infinity

Answer 9

k thanks

Answer 10

yw