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muminat
2 years ago
9

Active time 45:56 please help

Mathematics
2 answers:
exis [7]2 years ago
6 0

Answer:

\frac{\pi }{\sqrt[3]{27} }

Step-by-step explanation:

The third one

Any number with pi is irrational

MAXImum [283]2 years ago
6 0

Answer:

the third option \frac{\pi }{\sqrt[3]{27} }

Step-by-step explanation:

because pi cannot be put into a fraction

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Random samples of size 64 are taken from an infinite population whose mean and standard deviation are 24 and 6.4, respectively.
umka2103 [35]

Answer:

Mean 24, standard error 0.8

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation, also called standard error s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 24, \sigma = 6.4, n = 64

What are the mean and the standard error of the sample mean?

By the Central Limit Theorem, mean 24 and standard error s = \frac{6.4}{\sqrt{64}} = 0.8

7 0
2 years ago
765 millimeters of rain fell in 45 minutes. What is the unit rate for millimeters per minute?
Anika [276]

Answer:

17 mm/minute

Step-by-step explanation:

765/45= the unit rate

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6 0
2 years ago
What is 4x+5 less than or equallys too 13 equals
gizmo_the_mogwai [7]
If you are trying to solve for x, then 
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4x<=8
then divide both sides by 4 
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5 0
3 years ago
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Answer:

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Step-by-step explanation:

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