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27-05-2022
Mathematics

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If Dwight Johnson has 7 courses to choose from, how many ways can he arrange his schedule if he must pick 4 of them?

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27-05-2022

Answer:

35 ways

Step-by-step explanation:

[tex]_7C_4=\frac{7!}{4!(7-4)!}=\frac{7!}{4!*3!}=\frac{7*6*5}{3*2*1}=\frac{210}{6}=35[/tex]

Therefore, Dwight can arrange his schedule in 35 ways if he must pick 4 out of 7 courses to choose from.

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