Answer:
The probability of both dice having the same number is 636, as there are 36 different outcomes, 6 of which have two of the same number, i.e. (1,1),(2,2),....
The expected number of rolls of this type in 100 pairs of dice rolls is 100∗636
The answer u have is correct how it is
Answer:
1320, permutation
Step-by-step explanation:
There are 12 members
Pick a president
We have 12 choices
Now there are 11 people left to pick from
now pick a vp
We have 11 choices
Now there are 10 people left to pick from
now pick a secretary
We have 10 choices
12*11*10 = 1320
This is a permutation since it matters who is president, vp and secretary
Hey there!
Explanation:
First, you had to do is add by 13 from both sides of an equation.

Then, simplify or add by the numbers.


Next, you can also divide by 3 from both sides of an equation.

And finally, simplify and divide by the numbers,

*The answer must have a positive sign.*

Hope this helps!