pariisbrea06 pariisbrea06

21-12-2020
Mathematics

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Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in the simplest form 15,11,7

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nadia2318116 nadia2318116

22-12-2020

Step-by-step explanation:

the sequence is arithmetic due to the common difference that is equal

d=11-15=7-11=-4

a(n) = a1 +(n-1)d

a1=15

Then :

a(n) = 15+(n-1)-4

hope this helps

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