Question

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

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

Answer 1

\[\large \sum_{n=s}^e~pattern\]

Answer 2

what would say is the pattern?

Answer 3

(-3 + 9n)?

Answer 4

yes

so, let n start at 0 and end at ... what do you get for

-3+9n = 132 ?

Answer 5

15?

Answer 6

i get n=15

soo\[\Large \sum_{n=0}^{15}~9n-3\]

Answer 7

ohhh okay, thank you!

Answer 8

youre welcome