Question

What is the common
ratio for this geometric sequence?
16,8, 4, 2, ..

Answer 1

r = 1/2

Explanation:

Each entry is diminished by a factor of 1/2 times the previous entry.

so r = 1/2

The next number in the series is 1 and then the one after that is 1/2 and then 1/4 ...