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Mariana [72]
3 years ago
11

Х

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
8 0

-2/3

Step-by-step explanation:

the answer is -2/3

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algol [13]
I think it is 3.6 ....... 
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3 years ago
I need help please!!!!
nika2105 [10]

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From an urn containing 3 white and 2 black balls, two balls are drawn one after the other without replacement. What is the proba
Marina86 [1]

Answer:

There is a 3/5 chance of the first ball being white, and a 3/10 chance the second one is black.

Step-by-step explanation:

There are 5 balls, of which 3 are white, so you have a 3/5 chance of the first one being white. Then you have 2 white and 2 black balls. There is a 2/4 chance of picking a black ball. Multiply 3/5 and 2/4 to get 6/20, or 3/10 for choosing a white ball then a black ball.

6 0
3 years ago
A system of equations and its solution are given below.
ratelena [41]

Answer:

B

Step-by-step explanation:

The second equation in system B is only in terms of y, so we need to use elimination to eliminate the x term from the second equation in system A.

To do that, we need to multiply the first equation by 5.

5 (-x − 2y = 7)

-5x − 10y = 35

Add to the second equation.  Notice the x terms cancel out.

(-5x − 10y) + (5x − 6y) = 35 + (-3)

-16y = 32

Combining this new equation with the first equation from system A will get us system B.

-x − 2y = 7

-16y = 32

4 0
3 years ago
Please answer this question! I will try to give brainlist if possible. I beg you, I have asked this question three times!
frutty [35]

Answer:

2/7

Step-by-step explanation:

Even numbers: 6, 8, 10, 20

P(E1) = 4/7

P(E2) = 3/6

4/7 × 3/6

2/7

3 0
4 years ago
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