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igor_vitrenko [27]
3 years ago
8

Please help meee!!

Mathematics
1 answer:
tino4ka555 [31]3 years ago
6 0

Answer:

Yes your friend is correct.

Step-by-step explanation:

This can become very complex when trying to explain but essentially, opposite angles like angle 4 and 6 or the 103 degree and angle 2 would have the same angle measurement. Since angle 2 and 6 are on the same straight line with lines a and b being parallel, we know that that angle 2 and 6 are equal. Since we know that angle 2 and the 103 degree angle are equivalent, we can conquer that angle 6 equals 103 degrees.

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Write as a mixed number. 60/7
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8 3/7

Step-by-step explanation:

divide 60 by 7 and it goes 8 times with 3 leftover

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A football field is a 64-meter-wide, 100-meter-long rectangle. What is the length of a diagonal ofa football field to the neares
lutik1710 [3]

Answer:

A rectangular football field is 64 meters wide and 100 meters long. A player runs from one corner of the firmed in a diagonal line to the opposite corner. ... How much shorter is it to run across the field than around it ( nearest tenth)? ... Substitute the length of the sides (7 in, 25in n) into the Pythagorean theorem.

Step-by-step explanation:

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According to the U.S. National Transportation Safety Board, the number of airline accidents by year from 1983 to 2006 were 23, 1
Lera25 [3.4K]

Answer:

\bar X= 33.79167

s= 12.06497

SE= \frac{s}{\sqrt{n}}= \frac{12.06497}{\sqrt{24}}=2.463

Median= \frac{30+31}{2}= 30.5

Step-by-step explanation:

For this case we have the following data:

23, 16, 21, 24, 34, 30, 28, 24, 26, 18, 23, 23, 36, 37, 49, 50, 51, 56, 46, 41, 54, 30, 40, and 31

We can calculate the sample mean with the following formula:

\bar X = \frac{\sum_{i=1}^n X_i}{n}

And replacing we got:

\bar X= 33.79167

Then we can calculate the standard deviation with this formula:

s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

And replacing we got:

s= 12.06497

And the sample size for this case is n =24. We can calculate the standard error with this formula:

SE= \frac{s}{\sqrt{n}}= \frac{12.06497}{\sqrt{24}}=2.463

And the median for this case since the sample size is 24 first we need to sort the data on increasing order and we got:

16 18 21 23 23 23 24 24 26 28 30 30 31 34 36 37 40  41 46 49 50 51 54 56

And for this case the median would be the average from the position 12 and 13 and we got:

Median= \frac{30+31}{2}= 30.5

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3 years ago
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