Posted by **Embraced** on Saturday, January 21, 2012 at 6:37pm.

What is the sum of a geometric series with first term a1= 2, a common ratio r of 2 and the number of terms, n, equal to 4.

- Algebra 2 -
**Steve**, Sunday, January 22, 2012 at 11:04am
sequence is 2,4,8,16

sum = 30

just FYI the series is the sequence of partial sums of the sequence:

series = 2,6,14,30,...

## Answer This Question

## Related Questions

- Math(arithmetic & Geometric Series) - 1)The sum of 6 terms of an arithmetic ...
- math studies - An arithmetic series has a first term of -4 and a common ...
- math C2 sequences and series - The eight,fourth and second terms of an ...
- Geometric Series (Algebra 2) - I need some assistance or a formula when trying ...
- arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...
- arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...
- Alg2 - If the sum of a geometric series is 781, the number of terms is 5, the ...
- Maths - 1..The first 2 terms of a geometric progression are the same as the ...
- Geometric series - The sum of the first five terms of a geometric series is 186 ...
- maths and science - The first term of a geometric sequence is 125รท4,the last ...

More Related Questions