Question

Help !!!!

Answer 1

Which of the following choices is the simple formula for the nth term of the following arithmetic sequence?

7, 3, -1, -5, -9, ...

A. 5n + 4
B. -4n + 11
C. 4n + 1
D. -4n + 1
E. 4n + 11

Answer 2

nth term?

Answer 3

huh ?

Answer 4

First you need to find the common difference (d) and the first term (a1)

Answer 5

that would be + -4 right

Answer 6

Plug it into this formula to find out a(n) = a1 + (n - 1)d

Answer 7

Sn = n(a1 + an)/2 = n[2a1 + (n - 1)d]/2

Answer 8

okay so it would be d.

Answer 9

Thats the formula to calculate arithmetic sequence.

Answer 10

Awesome job! You're correct :) Medal please?

Answer 11

@dawsonflores

Answer 12

im trying its not leeting me :(

Answer 13

It's fine :) At lease I was able to help!

Answer 14

thank you !!!