I hope you understand....
Answer:
330
Step-by-step explanation:
This is the "choose" formula.
The equation for the choose formula is this:
nCk = n! / k!(n-k)!
! = factorial.
Plug in our numbers:
11C4 = 11! / 4!(11-4)!
39916800 / 24(5040)
39916800 / 120960
−13x+18
=−4x+(−9)(x)+(−9)(−2)
=−4x+−9x+18
Combine Like Terms:
=(−4x+−9x)+(18)
=−13x+18
