Question

Please help please please

Answer 1

with

Answer 2

What is the sum of a 17-term arithmetic sequence where the first term is 6 and the last term is -90?

Answer 3

ooh
it will be 17(6-90)/2

Answer 4

use the formula

\[S_{n} = \frac{n}{2} \times (a + l)\]

a = 1st term, l = last term, n = number of terms

Answer 5

what about this oneWhat is the 35th term of the arithmetic sequence where a1 = 13 and a17 = -67?

Answer 6

go and look at your previous posting of the question

Answer 7

first
find the distance btwn two terms
then find 35th term

Answer 8

-157 right