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Nimfa-mama [501]
3 years ago
14

Which of the following is equivalent to √-90? A. -3i√10 B. 3i√10 C. 9i√10 D. 9√-10

Mathematics
2 answers:
erastova [34]3 years ago
7 0
The answer to this question is B.  I hope this helps
Brilliant_brown [7]3 years ago
3 0
Hello there.

<span>Which of the following is equivalent to √-90?

</span><span>B. 3i√10</span>
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Answer:

The mean is 11.5 minutes and the standard deviation is of 6.64 minutes

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The mean is:

M = \frac{a+b}{2}

The standard deviation is:

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9:41 is 23 minutes from 9:18. So the time is uniformily distributed between 0 and 23 minutes, so a = 0, b = 23.

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M = \frac{a+b}{2} = \frac{0+23}{2} = 11.5

Standard deviation:

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The mean is 11.5 minutes and the standard deviation is of 6.64 minutes

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