Find the flux of the vector field F across the surface S in the indicated direction.F = 2xi + 2yj + z5k; S is portion of the cylinder x2 + y2 = 9 between z = 0 and z = 2; direction is outward
A. 36
B. 72
C. 72?
D. -72?
Answer: C
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Provide an appropriate response.Give a geometric interpretation of the triple integral 
What will be an ideal response?
Solve the problem.The radius of a circle is 
in. Find its circumference.
A. 
? in
B. 
? in
C. 
? in
D. 
? in
Solve the problem.Brand A soup contains 854 milligrams of sodium. It is recommended that a person requiring 2000 calories daily consume 2500 mg of sodium or less per day. Graph the function, f, that computes the number of mg of sodium in x cans of soup together with y1 = 2500, y2 = 5000, y3 = 7500 in [0, 10, 1] by [0, 8000, 1000]. Use the intersection-of-graphs method to find how many cans of soup contain 1, 2, and 3 daily allowances of sodium.
A. 
1 allowance = 3 cans;
2 allowances = 5 cans;
3 allowances = 8 cans
B. 
1 allowance = 3 cans;
2 allowances = 6 cans;
3 allowances = 9 cans
C. 
1 allowance = 6 cans;
2 allowances = 9 cans;
3 allowances = 3 cans
D. 
1 allowance = 3 cans;
2 allowances = 6 cans;
3 allowances = 9 cans
Solve the problem.What is the domain of the function f(x) = 
?
A. (-?, -9) ? (4, ?) B. [4, ?) C. (-?, -9) ? [4, ?) D. (-?, -9)