Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 7 - Exponential Functions - 7.1 Derivative of f(x)=bx and the Number e - Exercises - Page 327: 9

Answer

$$ k=9.$$

Work Step by Step

We have $$ k^{\frac{3}{2}}=27\Longrightarrow k^{\frac{3}{2}}=9^{\frac{3}{2}}. $$ Since the exponents are equal, then the bases are equal and we get $$ k=9.$$
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