MODELING REAL LIFE The table shows the research activities of two students at an observatory. How much does a student pay to use the telescope for one hour?
Telescope Use Supercomputer Use Total Cost
Student 1
5 hours
3 hours
$70.50
Student 2
6 hours
2 hours
$67.00
A student pays $
to use the telescope for one hour.
How much does a student pay to use the supercomputer for one hour?
A student pays $
to use the supercomputer for one hour.

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.