## Algebra: A Combined Approach (4th Edition)

Published by Pearson

# Chapter 5 - Section 5.2 - Negative Exponents and Scientiﬁc Notation - Exercise Set: 96

#### Answer

Tallest: $230,000,000,000 = 2.3 \times 10^{11}$ Shortest: $150,000,000,000 = 1.5 \times 10^{11}$

#### Work Step by Step

Using eye to judge. The tallest bar is slightly greater than half-way between 200 and 250, so it is about 230 billion. $230,000,000,000 = 2.3 \times 10^{11}$ The shortest bar is touching 150 billion. $150,000,000,000 = 1.5 \times 10^{11}$

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