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Afina-wow [57]
3 years ago
13

Xander spends most of his time with his 10 closest friends. He has known 4 of his 10 friends since kindergarten. If he is going

to see a movie tonight with 3 of his 10 closest friends, what is the probability that the first 2 of the friends to show up to the movie are friends he has known since kindergarten but the third is not?
Mathematics
2 answers:
Liula [17]3 years ago
7 0
Note that there's a strict order here -> 2 close friends, then 1 non-close friend.

So, picking in order:
probability of picking the first close friend: 4/10
probability of picking the second close friend: 3/9
probability of picking the first non-close friend: 6/8

So, we get 4/10 * 3/9 * 6/8 = 1/10.
aniked [119]3 years ago
4 0

Answer:

2/1

Step-by-step explanation:

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jekas [21]

Answer: Maybe B

Step-by-step explanation:

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3 years ago
5. Given the linear table below, what is the rate of change? *
Illusion [34]
The answer is: -2 because as x increases by 1 y decreases by -2
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3 years ago
Help me pls i am begging.
ioda

Answer:

-4

Step-by-step explanation:

-4 x 13 = -52

Hope that helps :)

4 0
2 years ago
Subtract and add the group of fractions below. Make sure the answer is fully reduced.
yarga [219]

Answer:

19/20 that's simplified by the way... and if you want the decimal form it's 0.95

6 0
3 years ago
Read 2 more answers
What is the value of x<br> What is the value of the exterior angle
Oduvanchick [21]

Answer:

???????

Step-by-step explanation:

triangles add to 180 degrees

lets call the unknown angle y

82 + x + y = 180

we also know that y + (2x-20 ) = 180  because it is a straight line

lets solve this for y

y + (2x-20 ) = 180

subtract (2x-20) from each side

y = 180 - (2x-20)

y = 180 - 2x + 20

y = 200 -2x

substitute this in the triangle equation

82 + x + y = 180

82 + x + 200 -2x = 180

combine like terms

282 -x = 180

subtract 282 from each side

-x = -102

multiply by -1 on each side

x = 102

the exterior angle is 2x-20

exterior angle is 2(102) -20

exterior angle is 204-20

exterior angle is 184

This is impossible.


There is a mistake with this problem

The triangle is not a triangle.  Angle y would be negative. y=-4

6 0
3 years ago
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