math
posted by Anonymous .
Which of these is not a geometric sequence?
3, 6, 12, 24, ...
250, 50, 10, 2, ....
5, 15, 45, 135, ...
4, 12, 20, 28, ...

This site explains geometric sequence.
http://www.purplemath.com/modules/series3.htm
posted by Anonymous .
Which of these is not a geometric sequence?
3, 6, 12, 24, ...
250, 50, 10, 2, ....
5, 15, 45, 135, ...
4, 12, 20, 28, ...
This site explains geometric sequence.
http://www.purplemath.com/modules/series3.htm