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soldier1979 [14.2K]
3 years ago
6

How do I solve this?

Mathematics
1 answer:
Len [333]3 years ago
7 0
5 Girls + 3 Boys =8 (sample size)

Probability of choosing 1 boy P(1 B) = 3/8

Probability of NOT CHOOSING ANY BOY = 1-3/8 =5/8

Now apply the binomial probability to choose 3 Boys:

8C3(3/8)³(5/8)⁵ ==>P(All boys) = 0.28
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The answer would be letter B
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A family of 2 adults and 3 children goes to a play . admission costs $8per adults and $5 per child. what expression would show t
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Find the value of x.<br> A.124<br> B.57<br> C.72<br> D.90
Llana [10]

9514 1404 393

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  x = 90°

Step-by-step explanation:

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<em>Additional comment</em>

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3 0
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What is the perimeter of polygon lmnpq
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Chris wants to fence three sides of a rectangular exercise yard for his dog. The fourth side of the exercise yard will be a side
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Answer:

  • parallel: 60 ft
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Step-by-step explanation:

Let x represent the length of fence parallel to the house. Then the length perpendicular is ...

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This is the equation of a parabola that opens downward and has zeros at x=0 and x=120. The maximum (vertex) is on the line of symmetry, halfway between these zeros, at x=60.

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The area of the yard is (60 ft)(30 ft) = 1800 ft^2.

4 0
4 years ago
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