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

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## Answers ( )

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).