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mafiozo [28]
3 years ago
15

Pleas y'all help me with this

Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:

-\frac{26}{2}/  -\sqrt{9}/  13.5(percent)/ 0/ 13.5

Step-by-step explanation:

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Answer: 7

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4 0
3 years ago
(x ÷ 8) + 23 – 4 = 36
kifflom [539]

Answer:

(x ÷ 8) + 23 – 4 = 36

x = 136

Step-by-step explanation:

3 0
2 years ago
Point M is the midpoint of AB . AM=3x+3, and AB=8x−6.<br><br> What is the length of AM?
MissTica
AM=3x+3
AB=8x-6
AB=2AM
AM=AB/2
AM=(8x-6)/2
AM=4x-3
3x+3=4x-3
4x-3x=3+3
x=6

AM=3x+3
AM=3(6)+3
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6 0
3 years ago
Read 2 more answers
A rock is thrown from the top of a building which measures 48 foot high. The graph shows the height, y, of the rock from the gro
zlopas [31]

Answer:

D.

Step-by-step explanation:

8 0
3 years ago
Barron's reported that the average number of weeks an individual is unemployed is 17.5 weeks. Assume that for the population of
Olin [163]

Answer:

P(16.5

And using the normal standard table or excel we find the probability:

P(-1.768< Z< 1.768) = 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 avergae number of weeks an individual is unemployed of a population, and for this case we know the distribution for X is given by:

X \sim N(17.5,4)  

Where \mu=17.5 and \sigma=4

Since the distribution for X is normal then, the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu= 17.5, \frac{\sigma}{\sqrt{n}}= \frac{4}{\sqrt{50}}=0.566)

We select a sample of n =50 people. And we want to find the following probability

P(16.5

And using the normal standard table or excel we find the probability:

P(-1.768< Z< 1.768) = P(Z

4 0
3 years ago
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