Solve the problem.Find the center of mass of a tetrahedron of density 
bounded by the coordinate planes and the plane 
.
A. 
= 
, 
= 
, 
= 
B. 
= 
, 
= 
, 
= 
C. 
= 
, 
= 
, 
= 
D. 
= 
, 
= 
, 
= 
Answer: D
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Use polar coordinates to find the limit of the function as (x, y) approaches (0, 0).f(x, y) = 
A. 1 B. 2 C. 0 D. No limit
Plot the point.(0, -4.5)
A. 
B. 
C. 
D. 
Solve the problem.In order to receive a B in a course, it is necessary to get an average of 80% correct on two one-hour exams of 100 points each, on one midterm exam of 200 points, and on one final exam of 500 points. If a student scores 91, and 84 on the one-hour exams, and 141 on the midterm exam, what is the minimum score on the final exam that the person can get and still earn a B?
A. 584 B. 314 C. 449 D. 404
Provide an appropriate response.A pediatric speech therapist started her own practice in 2004. The table below shows the number of children she treated each year from 2004 to 2012. The data is to be aligned to the number of years past 2000 and fitted with a linear model.
Classify each of the following as discrete or continuous.i) The data in the tableii) A scatter plot made from the dataiii) The best-fit linear model obtained for the dataiv) The graph of the best-fit linear model obtained for the data
What will be an ideal response?