Martin flips a fair coin. what is the probability that the coin will land on heads

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take

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.