mixsonmichael1558 mixsonmichael1558

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Mathematics

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At a benefit concert, nine bands have volunteered to perform but there is only enough time for six of the bands to play. How many lineups are possible?

Answer :

wolf1728 wolf1728

Today at 11:05 AM

You have to calculate how many ways you can select six things (r)
from a set of 9 things (n). (See attached formula).

9! / 6! * (3!) =
9*8*7 * 6! / 6! * 3! =
9*8*7 / 3! =
3 * 4 * 7 = 84 lineups

${teks-lihat-gambar} wolf1728

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