Carey is organizing her books and putting them on shelves. She put 2 books on the first shelf, 8 books
on the second shelf, 32 books on the third shelf,
and 128 books on the fourth shelf. What kind of
sequence is this?

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.