Question

what is the 10th term of the sequence 81, 27, 9...
a. 1/729
b. 1/243
c. 1/81
d. 1/810

Answer 1

this is a geometric sequence where each term is multiplied by a given number called a common ratio to get the next term can you see the pattern?

Answer 2

how do you get 27 from 81 and 9 from 27?

Answer 3

27 = x*81
what is x?

Answer 4

x = 28/81 = ?

Answer 5

* thats 27/81

Answer 6

you can simplify that by dividing 27 by 27 and 81 by 27;-