### Home > A2C > Chapter 7 > Lesson 7.2.2 > Problem 7-119

7-119.

Eniki has a sequence of numbers given by the formula .

What are the first three terms of Eniki's sequence?

Substitute

,, into the formula. Chelita thinks the number

is a term in Eniki's sequence. Is she correct? **Justify**your answer by either giving the term number or explaining why it is not in the sequence.Let

and solve for. Be sure to divide both sides of the equation bybefore taking the log of both sides. What kinds of numbers will tell you if it is in the sequence?

Elisa thinks the number

is a term in Eniki's sequence. Is she correct? Explain. See part (b).