fifteen boys took 12 hours to weed a plot of land. If nine boys work at the same rate how long will it take them to weed the same plot of land.

Find the cosine function that is represented in the graph.

Landon wrote that 3−2.6=4. which statement about his answer is true?

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.