Answer:
Step-by-step explanation:
The general equation of a sphere is as follows:
In which the center is 
, and r is the radius.
In this problem, we have that:
So
through the point (4,3,-1)
This leads us to find the radius.
So the equation of the sphere is:
The critical value is the z-score right at the edge of the rejection region option (A) is correct.
<h3>What is a normal distribution?</h3>
It's the probability curve of a continuous distribution that's most likely symmetric around the mean. On the Z curve, at Z=0, the chance is 50-50. A bell-shaped curve is another name for it.
It is given that:
The z-score is right at the edge of the rejection region.
As we know, the rejection zone is the area in which we have sufficient data to reject the null hypothesis if our test statistic falls within it.
Thus, the critical value is the z-score right at the edge of the rejection region option (A) is correct.
Learn more about the normal distribution here:
brainly.com/question/12421652
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Given:
a varies jointly as b and c.
a=6 when b=2 and a=3.
To find:
The variation constant and the equation of variation.
Solution:
a varies jointly as b and c.
...(i)
Where, k is the constant of proportionality.
a=6 when b=2 and a=3.
The value of k is 1.
Putting k=1 in (i), we get
Therefore, the variation constant is 1 and the equation of variation is .
Answer:
2 or y=2
Step-by-step explanation:
You can find it by calculating -
- 
= 2
The axis of symmetry is 2
