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1 year ago

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! PLEASE HELP!

1 answer:

salantis [7]1 year ago

8 0

Using the combination formula, it is found that if the first flag is orange then the number of different signals consisting of 4 flags is 364.

The order in which the flags are chosen is not important, hence, the <em>combination formula</em> is used to solve this question.

<h3>What is the combination formula?</h3>

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by:

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this problem, considering that the first flag is orange, 3 flags will be chosen from a set of the remaining 14, hence the number of signals is given by:

$C_{14,3} = \frac{14!}{3!11!} = 364$

More can be learned about the combination formula at brainly.com/question/25821700

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