Given:
15 students
2 students must be chosen.
No repetition, no order
This is a combinations problem. We use this formula: n! / (n-r)!(r!)
n = 15 ; r = 2
15! / (15-2)!(r!) ⇒ 15! / 13! * 2! = 105
Answer:
yes
Step-by-step explanation:
Answer:
756 m²
Step-by-step explanation:
I just know the answer XD
$9.78=100%
$9.65=?
9.65*100/9.78
=98.67%
%decrease=100%-98.67%
=1.33%
=1.3%
