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KIM [24]
2 years ago
15

You want to put tape on the ground to mark the lines for a volleyball court. What is the most effi cient way to make sure that t

he opposite sides of the court are parallel? Support your answer with a diagram.
Mathematics
2 answers:
const2013 [10]2 years ago
7 0
Measure the same distance from the first line to the next at at least three points on the line to get it parallel
Nana76 [90]2 years ago
6 0
Hello <span>Dannie12 

Question: </span><span>You want to put tape on the ground to mark the lines for a volleyball court. What is the most effi cient way to make sure that the opposite sides of the court are parallel? Support your answer with a diagram.
</span><span>

Answer: Measure the same distance between every point


Hope that helps
-Chris


</span>
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Unoccupied seats on flights cause airlines to lose revenue. Suppose a large airline wants to estimate its average number of unoc
Bingel [31]

Answer:

We need a sample size of at least 719

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

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Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

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This is at least n, in which n is found when M = 0.3, \sigma = 4.103. So

M = z*\frac{\sigma}{\sqrt{n}}

0.3 = 1.96*\frac{4.103}{\sqrt{n}}

0.3\sqrt{n} = 1.96*4.103

\sqrt{n} = \frac{1.96*4.103}{0.3}

(\sqrt{n})^{2} = (\frac{1.96*4.103}{0.3})^{2}

n = 718.57

Rouding up

We need a sample size of at least 719

6 0
2 years ago
The diagram shows a field.<br>140 m<br>66 m<br>102 m<br>Work out the area of the field.​
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The distribution will exhibit symmetry. 
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It's 10. I hope this helps!
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