Answer:

Step-by-step explanation:

Answer:
The answer should be 81. Hope this helps!
Answer:
or

Step-by-step explanation:
yz-plane has the equation
where
is a real constant. The normal vector of this plane (vector perpendicular to the plane) is

If the line is perpendicular to this plane, then it is parallel to the normal vector, so the equation of this line is

where
are coordinates of the point the line is passing through.
In your case, the line is passing through the point (0,0,8), so the canonical equation of the line is

Write a vector parametrization for this line

Answer:
3. t-test for the difference between means for two related samples.
Step-by-step explanation:
It is given that a professor of UCI wishes to study what really the students remember from their elementary school days and other such stuffs that were very popular at that time.
therefore the professor put forward two test. In one of the test, he put some question from the elementary school and in other he put one question about a pop culture from that time. He used the same sample for both the tests.
So, since the professor involved the same set of students in his experiment for both the tests, so both the samples are related samples.
Therefore, the test uses is a t - test that is used for the difference between the related samples.
75/15=5 so the answer would be 5 months