Which is equivalent to (−2m + 5n)², and what type of special product is it?
a. 4m² + 25n²; a perfect square trinomial
b. 4m² + 25n²; the difference of squares
c. 4m² − 20mn + 25n²; a perfect square trinomial
d. 4m² − 20mn + 25n²; the difference of squares

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

Yuto and hila attempted to solve the same inequality. their work is shown below. which statement is true about the work shown above? yuto is correct because he isolated the variable correctly and reversed the inequality symbol. yuto is incorrect because he should not have reversed the inequality symbol. hila is correct because she isolated the variable correctly and reversed the inequality symbol. hila is incorrect because she should not have reversed the inequality symbol.

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.