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OpenStudy (anonymous):
A professor must randomly select 4 students to participate in a mock debate. There are 18 students in his class. In how many different ways can these students be selected, if the order of selection does not matter?
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OpenStudy (anonymous):
since he selects 4 do 18*17*16*15 because thats four numbers down including 18 u go down because each time one combination was used so u cant reuse it
OpenStudy (anonymous):
so 73440?
OpenStudy (anonymous):
yes dont forget to medal and fan
OpenStudy (anonymous):
im already a fan lol
OpenStudy (anonymous):
oh yeah
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OpenStudy (anonymous):
lol ;)
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