Jeanine Baker makes floral arrangements. She has 13 different cut flowers and plans to use 7 of them. How many different selections of the 7 flowers are possible?

Question

Mathematics

Brooke Ho

31 August, 06:51

Jeanine Baker makes floral arrangements. She has 13 different cut flowers and plans to use 7 of them. How many different selections of the 7 flowers are possible?

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Answers (1)

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Rishi House · Answer 1

1716

Step-by-step explanation:

13C7 = > 13!/7!6!

or, the seven can be selected in 13 x 12 x 11 x 10 x 9 x 8 x 7 ways = > 8648640

But, the seven can be arranged in 7 x 6 x 5 x 4 x 3 x 2 x 1 ways = > 5040

so, total = > 8648640/5040 = 1716