Question

Can someone please check this for me?
permutations

Answer 1

@Nnesha

Answer 2

@Nnesha

Answer 3

answers all look good to me, but what about no 5?

Answer 4

just a little suggestion
there is a shortcut instead writing all of the numbers like
\[ \frac{10!}{6!}=\frac{ 10*9*8*7*6**5*4*3*2*1 }{ 6*5*4*3*2*1 }\]
you can do \[\frac{ 10*9*8*7*6! }{ 6! }\]
and then just cancel out 6!
\[\frac{ 10*9*8*7*\cancel{6!} }{\cancel{ 6!} }=10*9*8*7\]

Answer 5

Oh yeah, that's a good idea. Thanks! :)