Select from the drop-down menus to correctly identify whether the given operation is closed or not closed with respect to each set of numbers. Real numbers are
closed, not closed
under multiplication.

Irrational numbers are
closed, not closed
under division.

Integers are
closed, not closed
under subtraction.

Positive rational numbers are
closed, not closed
under addition.

Describe the domain and range of y=2(3)^x-2+5

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(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.