Question 241782
If the sequence is geometric, type in the common ratio. If it is not, type in no.
500, 100, 20, 4,...

<pre><font size = 4  color = "indigo"><b>
To find out if it is geometric, 

1. divide the second term by the first term.

{{{100/500=1/5}}}

2. divide the third term by the second term.

{{{20/100=1/5}}}

3. divide the fourth term by the third term.

{{{4/20=1/5}}}

They are all the same, so it's a geometric sequence,
and the common ratio, r, is {{{1/5}}}

Edwin</pre>