Question

What is the next term in this geometric sequence?

104, -52, 26, -13, ...
6 1/2
-6 1/2
0
-26

Answer 1

6 ½

Explanation:

A geometric series has a common ratio:

-52 / 104 = -½

26 / -52 = -½

-13 / 26 = -½

The common ratio is -½. So the next term is:

-½ (-13) = 6 ½