athenaher0322 athenaher0322

06-05-2020
Mathematics

contestada

Consider the sequence: 7, 64, 121, 178, 235, ... where u, = 7
a.
State whether it is arithmetic or geometric. Show how you know.

Respuesta :

PollyP52 PollyP52

06-05-2020

Answer:

It is an arithmetic sequence.

Step-by-step explanation:

64 - 7 = 57

121 - 64 = 57

178 - 121 = 57

We have a common difference of 57, so it is arithmetic.

The explicit formula for the nth term

= 7 +57(n - 1).

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