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## Algebra 1

### Unit 9: Lesson 3

Introduction to geometric sequences

# Use geometric sequence formulas

You might need: Calculator

## Problem

$\begin{cases}b(1)=15\\\\ b(n)=b(n-1)\cdot (-3) \end{cases}$
What is the 4, start superscript, start text, t, h, end text, end superscript term in the sequence?
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