Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Section P.2 - Exponents and Scientific Notation - Concept and Vocabulary Check - Page 29: 10



Work Step by Step

$40 \times 10^{2}$ is not in scientific notation because the decimal should be placed after the first digit (in this case, 4) instead of after the first two (4 and 0). If this expression were converted to proper scientific notation, it would be $4 \times 10^{3}$.
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