Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.7 - Scientific Notation - Exercise Set - Page 90: 62

Answer

Hence, the combined worth is $ \$ 8.38 \times 10^{10} $.

Work Step by Step

Charles Koch worth is $41.9$ billion dollars while that of David Koch is $41.9$ billion dollars. The combined worth is $41.9+41.9 = 83.8 $ In scientific notation $ 8.38 \times 10^{10} $.
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