Answer:
dude
Step-by-step explanation:
which one is 3 and 4?
Answer:
$3.25
Step-by-step explanation:
In an ordinary deck of cards, we will notice that there are 52 cards.
However, we have 4 suits and 13 cards in each one making a total of 52, right?.
So, the probability that a person draws two cards and they will be of the same suit is:
![P(X) =\dfrac{ \bigg (^4_1 \bigg) \times \bigg ( ^{13}_{2}\bigg) }{ \bigg ( ^{52}_{2} \bigg)}](https://tex.z-dn.net/?f=P%28X%29%20%3D%5Cdfrac%7B%20%5Cbigg%20%28%5E4_1%20%5Cbigg%29%20%5Ctimes%20%5Cbigg%20%28%20%5E%7B13%7D_%7B2%7D%5Cbigg%29%20%7D%7B%20%5Cbigg%20%28%20%5E%7B52%7D_%7B2%7D%20%5Cbigg%29%7D)
![P(X) =\dfrac{ \dfrac{4!}{1!(4-1)!} \times \dfrac{13!}{2!(13-2)!} }{ \dfrac{52!}{2!(52-2)!} }](https://tex.z-dn.net/?f=P%28X%29%20%3D%5Cdfrac%7B%20%20%5Cdfrac%7B4%21%7D%7B1%21%284-1%29%21%7D%20%5Ctimes%20%5Cdfrac%7B13%21%7D%7B2%21%2813-2%29%21%7D%20%20%7D%7B%20%5Cdfrac%7B52%21%7D%7B2%21%2852-2%29%21%7D%20%7D)
![P(X) =\dfrac{4}{17}](https://tex.z-dn.net/?f=P%28X%29%20%3D%5Cdfrac%7B4%7D%7B17%7D)
Given that; A person bets 1 dollar to b dollars;
To make the bet fair is;
![\dfrac{4}{17}b - \dfrac{13}{17}(1) = 0](https://tex.z-dn.net/?f=%5Cdfrac%7B4%7D%7B17%7Db%20-%20%5Cdfrac%7B13%7D%7B17%7D%281%29%20%3D%200)
![= \dfrac{4}{17}b = \dfrac{13}{17}](https://tex.z-dn.net/?f=%3D%20%5Cdfrac%7B4%7D%7B17%7Db%20%3D%20%5Cdfrac%7B13%7D%7B17%7D)
multiply both sides by 17
4b = 13
b = 13/4
b = 3.25
Therefore, to make the fair, the value of b need to be $3.25
Answer:
Step-by-step explanation:
If f(x)= (3+x)
--——- , what is f(a+2)?
(x-3)
To answer this, replace each instance of x with a + 2:
3 + a + 2 5 + a
f(a + 2) = ----------------- = --------------
a + 2 - 3 a - 1
56$. What you do is: 50X1.12 because 12% is 0.12 and since they mark it up you are really paying 100%+12% (112%=1.12).