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:
x=-1
Step-by-step explanation:
Answer:
Assuming you have 
with 
, the answer is f(2)=13.6.
Step-by-step explanation:
I think that says with .
Now we want to find 
so replace n with 2:
This gives you:
Answer:
I did it and is 36
Step-by-step explanation:
Answer:
3, 5.38, 66, V21
Step-by-step explanation:
I assumed that V was the roman numeral V, which is equivalent to the number 5. I then multiplied 5 by 21 which is 105. If this is not the case and they simply wanted us to replace the v with a 5, then the answer would still be correct because 521 is greater than all the numbers in this set. Hope this helps.
