Match each system to the number the first equation can be multiplied by to eliminate the x-terms when adding to the second equation.
3x - y = 1
2
6x + 5y = 12
-2x + 6y = 3
4x + 3y = 9
1/2
10x - 4y = -8
–5x + 6y = 10
-2
-8x + 10y = 16
--4x - 5y = 13
-1/2

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.

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Which of the following statements would be sufficient to prove that parallelograms pqrs is a rectangle ?