Answer:
(-2,-8)
Step-by-step explanation:
I hope the image below helps!
<h3>
Answer: x = 30</h3>
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Explanation:
If a regular polygon has n sides, then each interior angle has the measure of
i = 180(n-2)/n
In this case, we have n = 6 sides, so,
i = 180(n-2)/n
i = 180(6-2)/6
i = 120
Each interior angle of a regular hexagon is 120 degrees.
This means the bottom-right angle of the triangle is 120 degrees. The upper-right angle of that triangle is shown to be x degrees. The remaining angle is also x due to the triangle being isosceles (recall that regular hexagons have all sides the same length). Isosceles triangles have congruent base angles, which are opposite the congruent sides.
Use the fact that for any triangle, the three angles always add to 180, and we get...
x+120+x = 180
2x+120 = 180
2x = 180-120
2x = 60
x = 60/2
x = 30
Answer:
The mean is 180.
The standard error is 0.286.
Step-by-step explanation:
This question can be solved using the central limit theorem.
The Central Limit Theorem estabilishes that, for a random variable X, with mean
and standard deviation
, a large sample size can be approximated to a normal distribution with mean
and standard deviation
.
In this problem, we have that:
The mean of the distribution of the sample means is the same as the mean of the population. This means that the mean is 180.
The standard deviation of the population is the square root of the population variance. So
.
The standard deviation of the sampling distribution of the sample mean is
.
The standard error of the sampling distribution of the sample mean is 
Answer
Step-by-step explanation:
Answer:
I would solve this as Simplify the matrix.
Step-by-step explanation:
I would do 5+9
Then i would do 16+2
Then the 4 would be by it self
14=18=4
Then if you need to solve it more then i would just add 14 18 and 4 together