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GalinKa [24]
4 years ago
5

Calculate the probability of being dealt the following poker hand. (Recall that a poker player is dealt 5 cards at random from a

standard deck of 52.) Express your answer as a decimal rounded to four decimal places.Two pairs: Two cards with one denomination, two with another, and one with a third.
Mathematics
1 answer:
Scilla [17]4 years ago
3 0
<span>Answer: (13 ranks, choose 2)*(4 from each rank, choose 2) *(remaining 44 cards, choose 1) /(52 total, choose any 5) = 13c2*(4c2)^2 *44 / 52c5 = 0.0475</span>
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4x^2 y+8xy'+y=x, y(1)= 9, y'(1)=25
jarptica [38.1K]

Answer with explanation:

\rightarrow 4x^2y+8x y'+y=x\\\\\rightarrow 8xy'+y(1+4x^2)=x\\\\\rightarrow y'+y\times\frac{1+4x^2}{8x}=\frac{1}{8}

--------------------------------------------------------Dividing both sides by 8 x

This Integration is of the form ⇒y'+p y=q,which is Linear differential equation.

Integrating Factor

 =e^{\int \frac{1+4x^2}{8x} dx}\\\\e^{\log x^{\frac{1}{8}+\frac{x^2}{2}}\\\\=x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}

Multiplying both sides by Integrating Factor  

x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}\times [y'+y\times\frac{1+4x^2}{8x}]=\frac{1}{8}\times x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}\\\\ \text{Integrating both sides}\\\\y\times x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}=\frac{1}{8}\int {x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}} \, dx \\\\8y\times x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}=\int {x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}} \, dx\\\\8y\times x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}=-[x^{\frac{9}{8}}]\times\frac{ \Gamma(0.5625, -x^2)}{(-x^2)^{\frac{9}{16}}}\\\\8y\times x^{\frac{1}{8}}\times e^{\frac{x^2}{2}}=(-1)^{\frac{-1}{8}}[ \Gamma(0.5625, -x^2)]+C-----(1)

When , x=1, gives , y=9.

Evaluate the value of C and substitute in the equation 1.

6 0
3 years ago
How many edges does a rectangle prism have?
creativ13 [48]

the answer to your question there would be 12

4 0
4 years ago
Read 2 more answers
A bag contains 4 red and 6 green gumballs. if you select 5 of them without looking, how many ways can you get exactly 3 red or e
marusya05 [52]
This is a combination problem. The approach to this is by using the nCr method, where n is the number of total objects and r is the number of success. For example, if you want to get 3 red out of the total 4, then that would be 4C3. That means,

4C3 = 4!/3!(4 - 3)! = 4 ways

If you want to get 2 green out of the total 6, then that would be 6C2. That means,

6C2 = 6!/2!(6-2)! = 15 ways

Therefore, there are a total of 4+15 = <em>19 ways</em>.
8 0
4 years ago
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In-s [12.5K]

Answer:

It is the hundredths.

Step-by-step explanation:

The second number after the decimal is the hundredths place.

7 0
3 years ago
Find the value of x<br> 90<br> (2x+3)<br> 90<br> 119
Virty [35]

Answer:

x=-61

Step-by-step explanation:

For parallelograms you always have the sum as 180,

You get 90+90+2x+3+119=180, then solve!

5 0
2 years ago
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