Answer:
18
Step-by-step explanation:
just add them unless you have to find the numbers for the 2 little squares
Answer:
The first one is by using your mind. If you know that factorial of any non negative integer denoted by n!
defined as
n!=n(n−1)(n−2)⋯3⋅2⋅1
then 5!=5∗4∗3∗2∗1. You can calculate it in your mind which will give you 5!=120.
That's it.
The next method is using your calculator. In my calculator Casio fx-991es, I pressed 5 and then shift+x−1
button and I got 120. Similarly, you can use Google to calculate it like I did and got this.
Step-by-step explanation:
Here we have to choose any 12 out of 50
here order of choosing jury does not matter it is only a group of 12 people we have to make
We know when we have to choose any r articles out of total n articles we can choose it in total ncr ways where c is a combination formula
ncr= n! / ( r! * ( n-r)!) (" ! " is factorial operation )
we have to find out 50 C12 = 50 ! /( 12 ! * ( 50-12)!) = 121399651100
Answer:
B
Step-by-step explanation:
four times as much;