# Chapter 5 - Number Theory and the Real Number System - 5.6 Exponents and Scientific Notation - Concept and Vocabulary Check: 10

False. $\$347 \text{ billion} =3.47 \times 10^{11}$dollars #### Work Step by Step A number in scientific notation is of the form$a \times 10^n$, where$1 \le a \lt 10$, and$n$is an integer. Thus,$347 \times 10^9$is not in scientific notation. Move the decimal point 2 places to the left and then increase the power of 10 by 2 to retain the value and obtain:$=3.47 \times 10^{9+2} \\=3.47 \times 10^{11}\$

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