Evaluate the surface integrals for $G(x,y,z)$ over $z=f(x,y)$ with $R.$

$(1)G(x,y,z)-=x,z=f(x,y)$ is parametrized by

$by$ vec$(h)(u,v)=(u,v,u+x-10),$ and

$R=\{(u,v)|u+x10,u0,x0\}$

$z=x^2+y^2,$vec$(h)(x,z)=(x,\sqrt[\phantom{2}]{9-x^2},z)$

for $z10($consider polors$)$ cordmates$)$