Ask Question
20 November, 01:36

Find the exact value of the 8th term of the geometric sequence: 648,216,72,24

a).30

b) 8

___

2481

c) 8

___

9

d) 8

___

27

+5
Answers (1)
  1. 20 November, 03:33
    0
    The sequence multiplies by 1/3.

    Using the formula for a geometric sequence:

    a (n) = a (1) * r^ (n-1)

    So ...

    a (n) = 648 * (1/3) ^ (n-1)

    Plugging in 8 for n produces:

    a (n) = 648 * (1/3) ^ (7)

    Using a calculator, I find the answer to be 0.296296296 ...
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Find the exact value of the 8th term of the geometric sequence: 648,216,72,24 a).30 b) 8 ___ 2481 c) 8 ___ 9 d) 8 ___ 27 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers