Achild is running on a moving sidewalk in an airport. when she runs against the sidewalk's motion, she travels 63ft in 9 seconds. when she runs with the sidewalk's motion, she travels 225ft in 15 seconds. what is the rate of the child on a still sidewalk and what is the rate of the moving sidewalk?

1) what is the measure of the exterior angle, ∠uvw ? 2) in triangle man, what is the measure of the exterior angle at n (in degrees)?

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.

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =