NCr*P^r*q^(n-r)
7C4*. 75^4*. 25^(7-4)
35*. 75⁴*. 25³
35*. 316*. 016
11.06*. 016
. 1769
=. 177
Class D has 28% boys because 50 x 28% (or .28) you get 14
Hope this helps!
Answer:
Step-by-step explanation:
5c + 4f ≥ 200
c + f ≤ 60
c > 0
f > 0
Answer:
y=20 when x=5
Step-by-step explanation:
you can find the value of y when x is 1
(it'll be 4)
then you can multiply 4 by 5 which is 20
15
. 125 divided by 8 is 15.625,0,625 times 8 is 5, add 15 and 5/8 and get 15
.