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The recursive formula, a1 = 18.5, an = an−1 + 1.5 models the number of people, in millions, that
own a smartphone in the U.S. n years after 2014. Write an equivalent explicit formula for the
situation.

 Jun 6, 2021
 #1
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does anyone know the answer to this?

 Jun 6, 2021
 #2
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http://mrswisey.weebly.com/uploads/2/3/3/9/23393696/d3-_arithmetic_sequences_answer_key_all.pdf 

scroll down to question 10 (I think it's the same question)

 Jun 6, 2021

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