Homework Help

express 6! , 7C2 and 8P3 as a product

user profile pic

ssdixon | Student, Undergraduate | (Level 1) Salutatorian

Posted May 9, 2012 at 4:55 AM via web

dislike -1 like

express 6! , 7C2 and 8P3 as a product

1 Answer | Add Yours

user profile pic

rcmath | High School Teacher | (Level 1) Associate Educator

Posted May 9, 2012 at 5:10 AM (Answer #1)

dislike 1 like

`(6!)=6*5*4*3*2*1=720`

`7C2=(7!)/(2!*(7-2)!)=(7*6*5*4*3*2)/(2*5*4*3*2)=`

`(7*6)/2=7*3=21`

`8P3=(8!)/((8-3)!)=(8!)/(5!)=6*7*8=336`

 

Join to answer this question

Join a community of thousands of dedicated teachers and students.

Join eNotes