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Schach [20]
3 years ago
14

What is the value of n?

Mathematics
1 answer:
Sauron [17]3 years ago
7 0

Answer:

B. 95 degrees

Step-by-step explanation:

first workout the vertically opposite angles;

subtract 121 from 180 to get the other pair of vertically opposite angles.

= 59

do the same for 144 to get = 36

59 and 36 make the interior angles of the triangle. find the third one by adding the two to get 95, then subtracting from 180 to get 85.

since angles on a straight line add up to 180 degrees , subtract 85 from 180 to get 95 as your answer.

hope you understand it welll

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Say a hacker has a list of n distinct password candidates, only one of which will successfully log her into a secure system. a.
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Answer:

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Step-by-step explanation:

If she has n distinct password candidates and only one of which will successfully log her into a secure system, the probability that her first first successful login will be on her k-th try is:

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P = \frac{1}{n}

Because, in her first try she has n possibles options and just one give her a successful login.

If k=2

P=\frac{n-1}{n} *\frac{1}{n-1} =\frac{1}{n}

Because, in her first try she has n possibles options and n-1 that are not correct, then, she has n-1 possibles options and 1 of that give her a successful login.

If k=3

P=\frac{n-1}{n} *\frac{n-2}{n-1} *\frac{1}{n-2} = \frac{1}{n}

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