Which pairs of triangles appear to be congruent? check all that apply.
a. triangles 1 and 4
b. triangles 1 and 3
c. triangles 2 and 3
d. triangles 1 and 2
e. triangles 2 and 4
f. triangles 3 and 4

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m