3, 13
(2 × midpoint - endpoint)
Mark brainliest please
A quadrilateral PQRS is a parallelogram. PQ and RS are opposite sides then the answer of this particular question is , x = 4, the parallelogram PQRS is a rhombus, QR = 31, The opposite angles are congruent. Thus, more than one answer is correct.
According to the question,
PQ = 7x+12; RS = 5x -20 and QR = 31
Solving PQ and RS we get x = 4. Thus, PQ = 40 and RS = 40.
A quadrilateral is a parallelogram if a pair of its opposite sides is parallel and congruent. A quadrilateral that has all sides equal and opposite sides parallel is called Rhombus.
Thus, the parallelogram PQRS is a rhombus.
Hence, a quadrilateral PQRS is a parallelogram. PQ and RS are opposite sides then the answer of this particular question is , x = 4, the parallelogram PQRS is a rhombus, QR = 31, The opposite angles are congruent. Thus, more than one answer is correct.
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Answer:
The null and alternative hypotheses are:
![H_{0}:\mu= 50.07](https://tex.z-dn.net/?f=H_%7B0%7D%3A%5Cmu%3D%2050.07)
![H_{a}:\mu>50.07](https://tex.z-dn.net/?f=H_%7Ba%7D%3A%5Cmu%3E50.07)
Under the null hypothesis, the test statistic is:
![t=\frac{\bar{x}-\mu}{\frac{s}{\sqrt{n}} }](https://tex.z-dn.net/?f=t%3D%5Cfrac%7B%5Cbar%7Bx%7D-%5Cmu%7D%7B%5Cfrac%7Bs%7D%7B%5Csqrt%7Bn%7D%7D%20%7D)
Where:
is the sample mean
is the sample standard deviation
is the sample size
![=1.26](https://tex.z-dn.net/?f=%3D1.26)
Now, the right tailed t critical value at 0.05 significance level for df = n-1 = 10-1 = 9 is:
![t_{critical}=1.833](https://tex.z-dn.net/?f=t_%7Bcritical%7D%3D1.833)
Since the t statistic is less than the t critical value at 0.05 significance level, therefore,we fail to reject the null hypothesis and conclude that there is not sufficient evidence to support the claim that the average phone bill has increased.
Answer:
You would have to find the surface area
Step-by-step explanation:
If you had to find something to FILL the room then you would need volume, however, you are working with walls which can be viewed as 2 dimensional, whilst volume is 3 dimensional.
So what you would do is find the surface area of the walls and the ceiling, and then exclude the floor.
If you are given the total surface area, then you need to find the surface area of the floor and subtract it by the total surface area and that will give you how much paint is needed.
The answer to your problem your story that’s how you write it