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mafiozo [28]
4 years ago
7

X2=36 what dose this mean

Mathematics
2 answers:
Rashid [163]4 years ago
5 0
It means you have to find what number equals 36 but multiplying with 2
Naily [24]4 years ago
4 0
You would divide X2=36 by 2 and you would be left with X=18. I hope I helped.

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A total of 2n cards, of which 2 are aces, are to be randomly divided among two players, with each player receiving n cards. Each
klasskru [66]

Answer:

P(X_s^c|X_F) =0.2

P(X_s^c|X_F) =0.31

P(X_s^c|X_F) =0.331

Step-by-step explanation:

From the given information:

Let represent X_F as the first player getting an ace

Let X_S to be the second player getting an ace and

\sim X_S as the second player not getting an ace.

So;

The probabiility of the second player not getting an ace  and the first player getting an ace can be computed as;

P(\sim X_S| X_F) = 1 - P(X_S|X_F)

P(X_S|X_F) = \dfrac{P(X_SX_F)}{P(X_F)}

Let's determine the probability of getting an ace in the first player

i.e

P(X_F) = 1 - P(X_F^c)

= 1 -\dfrac{(^{2n-2}_n)}{(^{2n}_n)}}

= 1 - \dfrac{n-1}{2(2n-1)}

=  \dfrac{3n-1}{4n-2} --- (1)

To determine the probability of the second player getting an ace and the first player getting an ace.

P(X_sX_F) = \text{ (distribute aces to both ) and (select the left over n-1 cards from 2n-2 cards}P(X_sX_F) = \dfrac{2(^{2n-2}C_{n-1})}{^{2n}C_n}

P(X_sX_F) = \dfrac{n}{2n -1}---(2)

P(X_s|X_F) = \dfrac{2}{1}

P(X_s|X_F) = \dfrac{2n}{3n -1}

Thus, the conditional probability that the second player has no aces, provided that the first player declares affirmative is:

P(X_s^c|X_F) = 1- \dfrac{2n}{3n -1}

P(X_s^c|X_F) = \dfrac{n-1}{3n -1}

Therefore;

for n= 2

P(X_s^c|X_F) = \dfrac{2-1}{3(2) -1}

P(X_s^c|X_F) = \dfrac{1}{6 -1}

P(X_s^c|X_F) = \dfrac{1}{5}

P(X_s^c|X_F) =0.2

for n= 10

P(X_s^c|X_F) = \dfrac{10-1}{3(10) -1}

P(X_s^c|X_F) = \dfrac{9}{30 -1}

P(X_s^c|X_F) = \dfrac{9}{29}

P(X_s^c|X_F) =0.31

for n = 100

P(X_s^c|X_F) = \dfrac{100-1}{3(100) -1}

P(X_s^c|X_F) = \dfrac{99}{300 -1}

P(X_s^c|X_F) = \dfrac{99}{299}

P(X_s^c|X_F) =0.331

8 0
3 years ago
melissa earned 87 points on her test elizabeth earned e fewer points than melissa write an expression that shows how many points
Setler [38]

Answer:

80

Step-by-step explanation:

6 0
3 years ago
3/4 divided by 9/11<br> Please help me
balandron [24]

Answer:

11/42        as a decimal it is 0.2619                                                                                                                                  

8 0
3 years ago
Can someone find rate of change of y pls ( irrelevant answers and links will be reported)
Alja [10]

Answer:

Step-by-step explanation:

As x increasess by 5 units from 0 to 5, y increases by 6,250 to -30,000.

The rate of change is:

  change in y            6250

---------------------- = ------------------- = 1250 (units of x) / (units of x)

  change in x                 5

7 0
3 years ago
Read 2 more answers
2 (3x + 6) = 3 (x - 10)
Masteriza [31]

Answer:

x= -14

Step-by-step explanation:

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3 years ago
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