If xx and yy are non-negative integers such that 2x+3y=82x+3y=8 and z=x2+y2z=x2+y2, what is the maximum value of zz?

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry.how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.