donovangragg1 donovangragg1

05-02-2020
Mathematics

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Plz help me

Write 1/5+(1/5)^2+(1/5)^3+(1/5)^4 as a decimal.

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LammettHash LammettHash

05-02-2020

10/5 = 2, so 1/5 = 2/10 = 0.2

Then

(1/5)^2 = 0.2^2 = 0.04

(1/5)^3 = 0.2^3 = 0.008

(1/5)^4 = 0.2^4 = 0.0016

Adding these together gives 0.2496.

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