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Mamont248 [21]
2 years ago
6

50 points!!! help fast! 50 points!!!

Mathematics
2 answers:
Gekata [30.6K]2 years ago
6 0

Answer:

What's d question It all letters

larisa86 [58]2 years ago
5 0

Answer:

<PQC = AC^2 *ABC

Step-by-step explanation:

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A researcher is interested in the lengths of brook trout, which are known to be approximately Normally distributed with mean 80
aliya0001 [1]

Answer:

P(X

And we can find this probability with the normal standard distirbution or excel and we got:

P(z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the lenghts of a population, and for this case we know the distribution for X is given by:

X \sim N(80,5)  

Where \mu=80 and \sigma=5

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability with the normal standard distirbution or excel and we got:

P(z

6 0
3 years ago
Convert 1 2/5 x 2/3 into a mixed number
zavuch27 [327]
It simplifies to the proper fraction 14/15 so it cannot be a mix number

hope this helps !!
8 0
3 years ago
Please help me <br> I’ll mark brainiest
Lubov Fominskaja [6]

Answer:

which number

every of them?

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A new movie theater has a deal for watching lots of movies. You pay 20 dollars at the beginning of the month and then you pay ju
fenix001 [56]

20 + 4 * 9

20 + 36

$56

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Would it make sense to state "a dilation has a scale factor of 1" explain your reasoning
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It wouldnt be reasonable bc a scale factor of 1 would make no difference therefore meaning there is no dilation.
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3 years ago
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