Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - Chapter Summary, Review, and Test - Review Exercises: 121

Answer

$2.1 \times 10^3$

Work Step by Step

Write each number in scientific notation to obtain: $=\dfrac{8.4 \times 10^6}{4 \times 10^{3}}$ Divide 8.4 and 4 together and the powers of 10 together to obtain: $=\dfrac{8.4}{4} \times \dfrac{10^6}{10^3} \\=2.1 \times 10^{6-3} \\=2.1 \times 10^3$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.