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

Question

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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Jade 1 month 2021-09-12T04:39:23+00:00 1 Answer 0

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    2021-09-12T04:40:38+00:00

    Answer:

    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

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45:7+7-4:2-5:5*4+35:2 =? ( )