g3ucortyterrey g3ucortyterrey

23-09-2016
Mathematics

contestada

Find the number of ways to listen to 4 different CDs from a selection of 10 CDs.
151,200

5040

2880

720

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jessylingard jessylingard

23-09-2016

i think is the second number 5040

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Hussain514 Hussain514

27-09-2016

Probibility (10,4)
= 10 * 9 * 8 * 7
= 5040
so B is right option
hope this helps

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