Liyahs1803 Liyahs1803

14-04-2020
Mathematics

contestada

Determine if the sequence is geometric. If it is, find the term named in the problem.

25.) 4, 8, 16, 32, ...
Find a9 (9 is a lowered power to a)

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altavistard altavistard

14-04-2020

Answer:

120

Step-by-step explanation:

Each new term is twice the previous term, so this is a geometric sequence. The applicable formula is

a(n) = a(1)*4*(n - 1)

and so a(9) = 4*4(9 - 1) = 120

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