How many different ways can a director select 4 actors from a group of 20 actors?

1 answer:

swat323 years ago

3 0

Number of ways = 20C4
Number of ways = (20 x 19 x 18 x 17) ÷ (4 x 3 x 2 x 1)
Number of ways = 116280 ÷ 24
Number of ways = 4845.

Answer: 4845

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3 years ago

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user100 [1]

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A company wants to decrease their energy use by 16%.if their electric bill currently 2,2000 a month what will their be if they a

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Step-by-step explanation:

Given,

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