# ALG 2

posted by .

What is the lat term, in a series of 10 terms with a common ratio of 2, a first term (a1) if 1 and a summation of 1023

• ALG 2 -

You have a,r,n

Tn = a*r^(n-1)
T10 = 1*2^9 = 512

## Similar Questions

1. ### math

1) If the sum of the first n terms of a series is Sn where Sn=2n²-n, (a)prove that the series is an AP, stating the first term and the common difference; (b)find the sum of the terms from the 3rd to the 12th inclusive 2) In an AP …
2. ### Math

1) If the sum of the first n terms of a series is Sn where Sn=2n²-n, (a)prove that the series is an AP, stating the first term and the common difference; (b)find the sum of the terms from the 3rd to the 12th inclusive 2) In an AP …
3. ### Geometric series - Check my answer

What is the first term in a geometric series with ten terms, a common ratio of 0.5 and a sum of 511.5?
4. ### ALG 2

What is the first term of a geometic series with a summation of 800, 4 terms and a common ratio of 3?
5. ### Algebra 2

What is the first term of a geometric series with a summation of 800, 4 terms and a common ratio of 3?
6. ### Algebra 2

What is the first term of a geometric series with a summation of 800, 4 terms and a common ratio of 3?
7. ### Geometric Series (Algebra 2)

I need some assistance or a formula when trying to find the first term of geometric series please! I don't understand this!!!! What is the first term of a geometric series with a summation of 289, 5 terms and a common ratio of 1/2?
8. ### maths and science

The first term of a geometric sequence is 125÷4,the last term is 2, and the sum of the associated series is 203÷4. What is the common ratio and how many terms are there in the series?
9. ### maths

The first term of a geometric sequence is 31(1/4),the last term is 2 and the sum of the associated series is 50(3/4).what is the common ratio and how many terms are there in the series?
10. ### algebra, series

The sum of the first n terms of a series is 1-(3/4). Obtain an expression for the nth term of the series. Prove that the series is geometric, and state the values of the first term and the common ratio. Please show workings

More Similar Questions