Find x when y = 18, if y= 5 when x =4
2 answers:
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Given information:
A fence on a hill uses vertical posts L and M to hold parallel rails N and P
The diagram is attached below
Here lines N and P are parallel lines
Transversal line for parallel lines N and P is line L
Calculation:
angle 1 and angle 16 are consecutive exterior angles
If parallel lines are cut by a transversal then consecutive exterior angles are supplementary.
<em><1 +< 16 = 180</em>
<em>115+ < 16 = 180</em>
<em>< 16 = 180 - 15</em>
<em>< 16 = 65</em>
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<em>So measurement of angle 16 = 65 degrees.</em>
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The sample size, n required to produce a margin of error, M, in a probability proportion distribution is given by:
The above formular shows that the sample size is inversely proportional to the Margin of error.
Then we have:
where k is some constant.
Now suppose we decrease M by a factor of 3,
Therefore, if we decrease the Margin of error by a factor of 3, we need to increase the sample size by a factor of 9.
The above formular shows that the sample size is inversely proportional to the Margin of error.
Then we have:
where k is some constant.
Now suppose we decrease M by a factor of 3,
Therefore, if we decrease the Margin of error by a factor of 3, we need to increase the sample size by a factor of 9.