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NISA [10]
3 years ago
8

There are five students standing in a line with their hats. Suddenly the wind picks up the hats and randomly assigns each hat to

a student. What is the probability that no student will get his or her own hat
Mathematics
1 answer:
laiz [17]3 years ago
5 0

Answer:

The probability of a person getting their own hat is 1/5 or 20%.

Step-by-step explanation:

If each person has one hat the chances (the probability) of them getting their own hat would be 20%. The chances (the probability) of them getting a hat that belongs to one of the other four students would be 80%. Due to there being 5 hats each person owns 1 hat so there would be a 1 out of 5 chance of them getting their own hat.

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DBE is obtained by enlarging ABC. If the area of ABC is 3 square units, what is the area of DBE?
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Answer:

The area of DBE = 27 square units

Step-by-step explanation:

Area of ABC = 3 square units

In the figure, we can see that ABC was enlarged so that BDE is formed where side BD = 6 and AB was = 2

Hence ABC was enlarged 3 times its size.

We know by formula that:

Area of ABC = 1/2(base x perpendicular)

3 = 1/2(2 x p)

=> p = 3

As ABC was enlarged 3 times its size, the perpendicular of BDE must be 3*p

= 3*3 = 9

AREA OF DBE = 1/2(base*perp)

= 1/2(6*9)

= 27 square units

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which graph represents a line with a slope of -2/3 and a u intercept equal to that of theme u =2/3×-2​
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A teacher asked his students to vote for an animal to be their class pet. Five-eighteenths of the students voted for a rabbit, O
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