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makvit [3.9K]
2 years ago
9

What the answer is ansjjfjcjcjjcjcjc

Mathematics
1 answer:
alukav5142 [94]2 years ago
8 0
The answer is 75! Explanation: Use the distance formula:)
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Estimate the answer to the following calculation<br><br>​
ryzh [129]

\frac{7.4^2 +\sqrt{8.67}}{0.53} \approx \bold{108.876}\\

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In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store.
skelet666 [1.2K]
Lets day the original price of the dvd player was $100,
36% marked down means you pay $64x
64x = $41.60
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similarly, stereo tuners = 100/78 x 69.42 = 6942/78 = $89 original cost
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3 years ago
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Shoe sizes for men in the United States are known to follow a normal distribution. If you calculated the z-score of a man's shoe
anastassius [24]

Answer:

This value means that his shoe size is 2.9 deviations above the population mean.

And we can find the approximate percentile for his measure like this:

P(Z

This correspond to the 99.8 percentile, so then his shoe size is 99.8% above all the shoe sizes.

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 shoe size of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu,\sigma)  

Where \mu represent the mean and \sigma the population standard deviation.

For this case we know that a man obtain a z score of z=2.9

This value means that his shoe size is 2.9 deviations above the population mean.

And we can find the approximate percentile for his measure like this:

P(Z

This correspond to the 99.8 percentile, so then his shoe size is 99.8% above all the shoe sizes.

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3 years ago
Please is urgent please
Tcecarenko [31]

Answer: Assuming the plumber will round up the hours, the answer is 335.

Step-by-step explanation:

You can use this equasion to solve the problem: 75+52x=c

In this case, x would equal the number of hours he would work and c would represent the final cost.

Basically, you can just multiply the hourly cost by the hours he works and then add the service fee. Hope this helped!

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20 PTS: Which is the graph of the sequence defined by the function f(x + 1) = 3/5 f(x) when the first term in the sequence is 37
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Image A. its on edgenuity 

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