Answer:
A person can select 3 coins from a box containing 6 different coins in 120 different ways.
Step-by-step explanation:
Total choices = n = 6
no. of selections to be made = r = 3
The order of selection of coins matter so we will use permutation here.
Using the formula of Permutation:
nPr = 
We can find all possible ways arranging 'r' number of objects from a given 'n' number of choices.
Order of coin is important means that if we select 3 coins in these two orders:
--> nickel - dime - quarter
--> dime - quarter - nickel
They will count as two different cases.
Calculating the no. of ways 3 coins can be selected from 6 coins.
nPr =
= 
nPr = 120
-6×-6=36
f-34=36
34+36=70
f=70
Answer:
35.612
Step-by-step explanation:
Answer:
The correct option is;

Step-by-step explanation:
The given expression is presented as follows;

Which can be expanded into the following form;

From which we have;


Therefore, substituting the value of n = 50 we have;


Which gives;



Therefore, we have;
.