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22-03-2017
Mathematics

contestada

A sequence starting with 2.5 is shown below.
2.5, 5.0, 7.5, 10.0.....n
which function represents the nth term of this sequence?

f(n)=n/2.5

f(n)=n+2.5

f(n)=n-2.5

f(n)=2.5n

Respuesta :

24-03-2017

This is an arithmetic sequence because each term is a constant difference from the previous term....

a(n)=a+d(n-1), a=2.5 and d=2.5

a(n)=2.5+2.5n-2.5

a(n)=2.5n

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