Atriangle is rotated 90° about the origin. which rule describes the transformation? (x, y) → (–x, –y) (x, y) → (–y, x) (x, y) → (–y, –x) (x, y) → (y, –x)

Radii ok and nl are perpendicular to om because of the radius-tangent theorem. by definition of perpendicular, angles kom and lnm are right angles. this means that triangles kom and lnm are right triangles. angle lmn is common to both right triangles, so by the triangles kom and lnm are similar.

Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).

If the tip varies directly with the number of guest which equation represents between the tip, t, and the number of guest, g?