College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 2, Functions - Section 2.1 - Functions - 2.1 Exercises - Page 194: 84

Answer

a. $D(0.1)=28.14$ $D(0.2)=39.8$ b.$D(0.215)=41.27$ c.$D(7)=235.56$ d.$\Delta D=194.29$

Work Step by Step

$D(h)=\sqrt{2rh+h^2}$, a. $D(0.1)=28.14$ $D(0.2)=39.8$ b. $1135 ft=0.215$ miles, $D(0.215)=41.27$ c. $D(7)=235.56$ d. $D(0.215)=41.25$, $D(7)=235.56$ Thus, $\Delta D=235.56-41.25=194.29$
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