Each problem is worth 2 points.  You must show a valid method of obtaining your answers for credit.  Please do not communicate with others regarding these problems until after you've turned your quizzes in.

1. Compute , where S is the portion of 2x+3y+z=6 in the first octant.
 
 
 

2. Compute , where C is the line segment beginning at (0,2) and ending at (3,0).
 
 
 

3. Evaluate , where S is the portion of the surface z=x²+y² inside x²+y²=25, along with the disc centered on the z axis of radius 5 in the plane z=25.
 
 
 

4. Find  where S is the portion of z=x²+y² inside x²+y²=25.
 
 
 

5. Evaluate  where C is the circle x²+y²=4.
 
 
 

6. Find  for C a line segment from (0,2) to (3,0).