Answer to Question #52633 in Calculus for john

Question

1)Find the total mass of the square disk 0<x,y<1 if the mass density is f(x,y)= x^(2)+y^(2)
2)Calculate the average value of the function f (x,y) = e^(x+y) on the square [0,1]x[0,1]
3)Calculate the average height above the x-axis of a point in the region 0<=x<=1,0<=y<=x^(2)