4 years ago

Question 13

Mathematics

1 answer:

Inessa05 [86]4 years ago

3 0

D is the correct answer

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What is the probability that a ﬁve-card poker hand contains a ﬂush, that is, ﬁve cards of the same suit?

Liono4ka [1.6K]

$\displaystyle |\Omega|=\binom{52}{5}=\dfrac{52!}{5!47!}=\dfrac{48\cdot49\cdot50\cdot51\cdot52}{2\cdot3\cdot4\cdot5}=2598960\\ |A|=\binom{13}{5}\cdot4=\dfrac{13!}{5!8!}\cdot4=\dfrac{9\cdot10\cdot11\cdot12\cdot13}{2\cdot3\cdot4\cdot5}\cdot4=5148\\\\ P(A)=\dfrac{5148}{2598960}=\dfrac{33}{16660}\approx0.2\%$

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3 years ago

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12345 [234]

Answer:

216

Step-by-step explanation:

the area is ((B + b) x h) / 2

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3 years ago

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kaheart [24]

Answer: 1.75

Step-by-step explanation:

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+3 +3

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3 years ago

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How many solutions exist for the given equation?<br><br> 3(x – 2) = 22 – x

Orlov [11]

Answer:

One solution

Step-by-step explanation:

3(x – 2) = 22 – x

Distribute

3x - 6 = 22 -x

Add x to each side

3x-6+x = 22-x+x

4x -6 =22

Add 6 to each side

4x-6+6 = 22+6

4x = 28

Divide by 4

4x/4 = 28/4

x = 7

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3 years ago

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Suppose an object moves along the y-axis so that its location is y = f(x) = x 2 + x at time x (y is in meters and x is in second

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the answer should be 16

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