## Question

###### Find. a. the mass of the solid. b. the center of mass. A solid region in the first octant is bounded by the coordinate planes and the plane $x+y+z=2 .$ The density of the solid is $\delta(x, y, z)=2 x$.

Find. a. the mass of the solid. b. the center of mass. A solid region in the first octant is bounded by the coordinate planes and the plane $x+y+z=2 .$ The density of the solid is $\delta(x, y, z)=2 x$.

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