Answer
$$ a = 426$$
$$ b = 107$$
$$ c = 852$$
Work Step by Step
$ A$= $ f(10,30)=426$
$B$= $f(20,10)=107$
$C$ = $f(10,40)+f(10,20)=558+294=852$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 15 - Section 15.1 - Functions of Several Variables from the Numerical, Algebraic, and Graphical Viewpoints - Exercises - Page 1094: 20
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