Choose all the rigid mapping rules that hold congruence. (x, y)->(x + 4, y - 5)

(x, y)->(x, x + y)

(x, y)->(3x, y)

(x, y)->(y, x)

(x, y)-> (-y + 4, x - 6)

(x, y) -> (1/y, 1/x)

(x, y)->(-y, x)

line or a linear equation graph

step-by-step explanation:

b

step-by-step explanation:

the answer is b.

step-by-step explanation:

by the trigonometric ratio tangent, tangent equals opposite divided by adjacent.

therefore, tan(50) equals ac/3

multiply each side by 3 to get: ac=3tan(50)

the answer is b.