The diagram below shows a flat mirror reflecting
In the above image, what is represented by line D?
the mirror
the angle of reflected light
the angle at which light hits the surface of the mirror
the imaginary line used to measure angles of rays

PLEASE I NEED THE ANSWER I DONT UNDERSTAND IT

Asher cycles 12 miles in 16 hours. what is his speed?

What are the north and south poles of a solenoid change with?

An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )