Find the 10th term in the geometric sequence 320, 160, 80, 40, ...

Nayeli Osborne

Nayeli Osborne

Answered question

2022-10-29

Find the 10th term in the geometric sequence 320, 160, 80, 40, ...

Answer & Explanation

SoroAlcommai9

SoroAlcommai9

Beginner2022-10-30Added 13 answers

320 , 160 , 80 , 40 , .....
First of all, you've to find the first term of the sequence,a,
first term, a =320
Then, you've to find the common ratio of the sequence.So,divide the second term with the first term,
common ratio, r = 160/320
r = 1/2
Use the formula T n = a ( r n - 1 )
T 10 = 320 [ ( 1 2 ) 9 ]
T 10 = 5 8

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?