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
5 times 10^7= 50000000
6 times 10^4= 60000
<span>(50000000)</span><span>(60000)</span>
<u>Answer</u>
3000000000000
Answer:
Step-by-step explanation:
Answer:
NEGATIVE SIGH
Step-by-step explanation:
The Answer is 24