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Svetach [21]
3 years ago
6

Write an i explicit formula for an, the nth term of the sequence 200, 40, 8, ....

Mathematics
1 answer:
Ugo [173]3 years ago
5 0

Answer:

T_n = 200 * (\frac{1}{5})^{n-1

Step-by-step explanation:

Given

Sequence: 200,40,8

Required

The nth term

The given sequence is a geometric sequence.

So, first we identify the first term

a = 200

Calculate common ration

r = \frac{40}{200} or r = \frac{8}{40}

r = \frac{1}{5}

So, the nth term is:

T_n = ar^{n-1

T_n = 200 * (\frac{1}{5})^{n-1

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