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saveliy_v [14]
3 years ago
6

Đề bài sau dùng cho 3 câu từ câu 1 đến 3

Mathematics
1 answer:
den301095 [7]3 years ago
4 0

Answer:

Step-by-step explanation:

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Aleks [24]

Answer:

Probability of picking an even and then even number = \frac{1}{6}

Step-by-step explanation:

Probability of picking a card with even number,

P(even 1) = \frac{\text{favorable outcomes}}{\text{Total outcomes}} = \frac{\text{even cards}}{\text{Total number of cards}}

               = \frac{2}{4}

               = \frac{1}{2}

Followed by picking a card which is even without putting the first card back.

So an even card is to be picked out of remaining 3 cards.

P(even 2) = \frac{\text{favorable outcomes}}{\text{Total outcomes}}

                = \frac{1}{3}

Now probability of both events = P(even 1) × P(even 2)

= \frac{1}{2}\times \frac{1}{3}

= \frac{1}{6}

Therefore, probability of both the events will be \frac{1}{6}.

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3 years ago
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Answer:

Step-by-step explanation:

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(12y 2+17y-4)+(9y-13y+3)
IrinaVladis [17]

Answer:

4y+3

Step-by-step explanation:

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Tell me something you have wanted to say but never told anyone.
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I’m not that smart i just get answers off the internet
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What is the definition of supplementary angles.
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Answer: either of two angles whose sum is 180°.

Step-by-step explanation:

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