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jekas [21]
2 years ago
14

Each of 5 boys randomly chooses a watch from 12 different styles. What is the probability that at least 2 boys choose the same t

ype of watch?
Answer with explanation gets brainliest.
Mathematics
1 answer:
aleksley [76]2 years ago
7 0

Answer:

Ok. So we have 12 different styles of watches to choose from, so that means that the total number of combinations of styles for 5 boys is 12*12*12*12*12, since each boy has his pick of 12 options.

The way to answer this question is by way of the complementary rule: We want the number of ways that the boys can all have different styles. So the first boy to pick has 12 options available to him, the second boy has 11 options available to him, the 3rd boy has 10 options available to him, so on and so forth.

So the probability that the boys all have different watches is (12*11*10*9*8)/12^5= .3819.

To find the probability that at least two boys have the same style would just be 1 -.3819 = 6181

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Answer:

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Step-by-step explanation:

0.28571429

7 0
2 years ago
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Given that lines a and b are parallel, what angles formed on line b when cut by the transversal are congruent with ∠2?
Kruka [31]

Answer:

The angles formed on line b when cut by the transversal are congruent with ∠2 are \angle{6}\text{ and }\angle{7}

Step-by-step explanation:

Consider the provided information.

If transversal line crossed by two parallel lines, then, the corresponding angles and alternate angles are equal .

The angles on the same corners are called corresponding angle.

Alternate Angles:  Angles that are in opposite positions relative to a transversal intersecting two lines.

∠2 and ∠6 are corresponding angles

Therefore, ∠2 = ∠6

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Therefore, ∠2 = ∠7

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3 0
3 years ago
Help on this thx for helping if you did
vichka [17]
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8/13 / 3/2

Now, once you turned the other number into a reciprocal, you multiply across. The top number times the other top number and do this to the bottom numbers, too.

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24/26 / 2/2 = 12/13

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6 0
3 years ago
For this one can you also tell me if my answer to question one is right!
kipiarov [429]
2. Tuesday
3.1/7 and 0.14 
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7 0
2 years ago
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2 (-X + 3) + x <br><br> Ⓘ ⓡⓔⓐⓛⓛⓨ ⓓⓞⓝ'ⓣ ⓤⓝⓓⓔⓡⓢⓣⓐⓝⓓ
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Step-by-step explanation:

We assume you want to simplify this.

Use the distributive property to eliminate the parentheses. That property tells you that the factor outside parentheses (2) will multiply both of the terms inside parentheses. It's as though you had a bag (parentheses) with two objects inside. Two such bags will have two of each of those objects.

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5 0
3 years ago
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