The polar equation of a circle is given. Give polar coordinates for the center of the circle and identify its radius.r = 6 cos ?
A. C(3, 0), radius = 3
B. C
, radius = 3
C. C
, radius = 6
D. C(6, 0), radius = 6
Answer: A
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Solve the problem.Suppose that z varies jointly with x and y and that z = 22.5 when x = 9 and 
Find the constant of proportionality k. Then, find z when x = 5 and 
A. k = 0.3; z = 13.5
B. k = 1012.5; z = 
C. k = 0.5; z = 22.5
D. k = 5; z = 225
Determine the indefinite integral.
A. - 
csch-1 
+ C
B. 
csch-1 
+ C
C. sinh-1 
+ C
D. - 
sech-1 
+ C
Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by x = 2tan 
, x = 0, y = - 
A. 12? - 3?2
B. 12 - 3?
C. 3? + 3?2
D. 6? - 
?2
Provide an appropriate response.Suppose you have to develop a model to predict snowfall for the upcoming winter based on data from previous winters. Consider the table of annual snowfall over the last five years:
Would it be possible to come up with one model that predicted very low amounts of snowfall and another that predicted very high amounts of snowfall? How so? If you were employed by a ski resort to come up with a model, what type of model would you use? What could be done to try to reduce the chance of coming up with such different models?
What will be an ideal response?