2 Answers

First Zero · Answer 1 · 2021-04-04T23:57:42+0000

Answer:

$\bold{161}$

Explanation:

We know that
here is represented by 55 (nth term = 55th term), so we get the 55th term is

-1 + 3(55 - 1)

= -1 + 3(54)

= -1 + 162

= 161

Which is our answer.

Legenddaniel · Answer 2 · 2021-04-06T12:44:12+0000

This formula means that a(n) for n, when n is the term number, will give you the term. Meaning, we just have to plug in 55 for n.

a(55) = -1 + 3(55 - 1)

a(55) = -1 + 3 * 54

a(55) = -1 + 162

a(55) = 161

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