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Delvig [45]
2 years ago
14

-10+4(3p+10)=18...

Mathematics
1 answer:
katovenus [111]2 years ago
3 0

Answer:

Step-by-step explanation:

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A drawer contains 12 brown socks and 12 black socks, all unmatched. A man takes socks out at random in the dark. 21. Required in
avanturin [10]

Answer:

6  socks

Step-by-step explanation:

What we must do is calculate the probability of this happening, that he takes out two black socks in the first two taken out.

There are 12 black socks and in total they are 24, therefore the probability of drawing 1 is:

12/24

and now the probability of getting another one is 11 (there is one less outside) and in total they are 23:

11/23

the final probability is the multiplication of these events:

(12/24) * (11/23)

P = 0.24

Now, to know how many you should get, we multiply the probability by the total number of socks, that is:

0.24 * 24 = 5.76

So you must take out at least 6 socks for the above to happen.

6 0
3 years ago
The night watchman in a factory cannot guard both the safe in back and the cash register in front. The safe contains $6000, whil
Zolol [24]

Answer:

The guard should be positioned at the safe

Step-by-step explanation:

The night watchmen should be positioned to guard whichever place gives the highest expected value to the thief.

The expected value of robbing the safe is:

EV_{s} = \$ 6000*0.2\\EV_{s} = \$ 1200

The expected value of robbing the cash register is:

EV_{r} = \$ 1000*0.8\\EV_{r} = \$ 800

Therefore, the guard should be positioned at the safe since it yields a higher expected value to the thief in case he tries to rob it.

7 0
3 years ago
What is the value of x that makes the given equation true? ​x−3x=2(4+x)
Margarita [4]

the answer to your question is x= -2

5 0
3 years ago
Read 2 more answers
(PLEASE HELP!!!)Where does the following graph have clusters of data? Select all that apply.
grigory [225]

Answer:

1-5

Step-by-step explanation:

It has clusters from 1 to 5 because that is where all the dots are that are not seperated.

8 0
3 years ago
1. Which words represent ADDITION<br> less than<br> sum<br> more than<br> times
Vlad1618 [11]

Answer:

more than

Step-by-step explanation:

8 0
3 years ago
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