Saturday

August 30, 2014

August 30, 2014

Posted by **Rocky** on Thursday, March 22, 2012 at 1:48am.

-20 - 18 - 15 - 11 …

I think it is both arithmetic and geometric

- math -
**Damon**, Thursday, March 22, 2012 at 4:37amdifferences of 2 , 3 , 4 so not arithmetic

-20

**** +2

-18

**** +3

-15

**** +4

-11

is it of form g + g r + g r^2 ....+gr^(n-1) ?

-20 ( 1 + r + r^2 + .... r^(n-1) ) ?

no way

**Related Questions**

Math - Which represents the type of sequence: 12, 22, 30, 36, 41, …? neither ...

algebra - can you check my answers please? What are the first three terms of the...

Algebra - Using the index of a series as the domain and the value of the series ...

Sequence and series - Do you know the difference between a sequence and a series...

Math - Using the index of a series as the domain and the value of the series as ...

algebra - Determine whether each sequence is arithmetic or geometric. Find the ...

math studies - An arithmetic series has a first term of -4 and a common ...

Algebra - Determine whether each sequence is arithmetic or geometric. Find the ...

7th Grade Math for Steve.. or Ms. Sue - Determine whether each sequence is ...

math - Determine whether each sequence is arithmetic or geometric. Find the next...