What is the sum of interior angels of an octagonal box?
2 answers:
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Trapezoid PQRS be inscribed in a circle because its opposite angles are supplementary.
According to the statement
we have given that the Trapezoid PQRS be inscribed in a circle and we have to find the correct answer from the given data.
So, For this purpose, we know that the
The inscribed quadrilateral conjecture states that the opposite angle of any inscribed quadrilateral are supplementary to each other. That is, they have a sum of 180 degrees.
From the diagram given,
the opposite angles in the trapezoid are 115 and 65 degree.
So, after adding it become
115 + 65 = 180 degrees.
Therefore, we can conclude that: trapezoid QPRS can be inscribed in a circle because its opposite angles are supplementary.
So, Trapezoid PQRS be inscribed in a circle because its opposite angles are supplementary.
Learn more about inscribed quadrilateral conjecture here
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Question:
Select the correct answer from each drop-down menu.
Trapezoid PQRS
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be inscribed in a circle because the
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115⁰
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65°
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Answer:
And the 95% confidence would be :
Step-by-step explanation:
We have the following info given from the problem
sample mean for this year
sample deviation for this year
random sample selected for this year
sample mean for last year
sample deviation for last year
random sample selected for last year
And we want to construct a 95% confidence interval estimate of the difference μ1−μ2, where μ1 is the mean of this year's sales and μ2 is the mean of last year's sales
For this case the formula that we need to use is:
The degrees of freedom are given by:
The confidence level is 0.95 and the significance would be and
so then the critical value for this case is :
The margin of error would be:
And the confidence interval would be given by:
And the 95% confidence would be :