(a)
We have been given an equation 
. Upon taking derivative of this equation with respect to x on both the sides, we get:
(b)
In order to write the equation of tangent line, we need to find the slope of the line. We know that point (3,11) lies on the graph. Therefore, we write the slope of the tangent as:
Therefore, equation of tangent line is:
(c)
We know that slope of tangent is given as 
. The tangent will be vertical when denominator of slope is zero, that is:
too much to explain and not enough space to write down
One, two and four are limitations of psychological experiments.
Answer:
First an investigating team should be formed to investigate the case, they should find evidence against the culprit. They should investigate whether he has stole funds only or he has some private or secret information. The case should be examined closely and decision should be taken that whether to involve police in the case or just handle it by their own. In severe cases it is important to involve police. Depending upon the case, maybe just firing the employee is enough and no legal action would be taken.
Explanation:
Answer:
This question really requires me to think because I am not religious at all, but personally I dont think so because we as humans, or well the religious humans, they strive to god for practically everything, and they used ''God'' to justify all the wrong doings. A covenant from my knowledge is an agreement to something, so with religion its between someones God and the person who believes in them, so yeah religious humans they have kept it up. Hopefully, me as a non religious person answering this question, will maybe help you to find the true answer if you are religious. Have a good day.
Explanation:
