Question

Please help it is so simple


Find the 13th term of the arithmetic sequence $1200, $964.32, $728.64, …

Answer 1

Why is people so scared of arithmetic? everytime I post this people leave?

Answer 2

It goes down by 235.68 each time

Answer 3

THat helps

Answer 4

tn=t1+(n-1)d is the formula

Answer 5

tn = t1 + (n-1)*d

tn = 1200 + (n-1)*(-235.68)

tn = 1200 - 235.68n + 235.68

tn = 1435.68 - 235.68n

tn = -235.68n + 1435.68

So the nth term is tn = -235.68n + 1435.68

This is assuming n starts at n = 1

Answer 6

Nice