Kelly and Vera each wrote down an integer. The absolute value of Kelly's integer is 30. The opposite of Vera's integer is -8. Which statements below must be true?
1. Kelly's integer is positive.
2. Kelly's integer is negative
3. Vera's integer is positive.
4. Vera's integer is negative.

The slope of a line is -1/2 . what is the slope of a line that is parallel to it? a. 1/2 b.2 c. -1/2 d. -2

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

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.