Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 11 - Counting Methods and Probability Theory - 11.3 Combinations - Exercise Set 11.3: 51

Answer

$10$

Work Step by Step

The order of the chosen vegetables does not matter. Combinations, ${}_{n}C_{r}=\displaystyle \frac{n!}{(n-r)!r!}$ ${}_{5}C_{2}=\displaystyle \frac{5!}{(5-2)!2!}=\frac{5\times 4}{1\times 2}=10$
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