4 years ago

Given the sequence: 125,25 5....write the rule an using geometric sequence formula

Mathematics

1 answer:

Maslowich4 years ago

3 0

Answer: A(n)=125*(0.2)^(n-1)

Step-by-step explanation:

The geometric sequence formula is An=A1*r^(n-1)

r in this sequence is 1/5 or 0.2.

so we get

$A(n)=125*0.2 ^{n-1}$

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