If you have a big difference in temperatures, but it's raining rather than snowing, what conditions must exist?

ANSWER:

Condition we are looking at is upon the majority of the precipitation, when the process starts.

EXPLANATION:

It starts falling down to the ground. At its early state is formed in the form of snow, in high altitude the temperatures is pretty low. Snowflakes are produced in the process above the freezing level.

That is less than 32-degree F and it starts to fall down to the earth. It starts to fall in the form of snow. Later when it comes in contact with air than it starts to rain.

the answer would be the third option, "no, ariel should have added 9^2 and 12^2 and compared that to 15^2."

this is found through the pythagorean theorem, which is a^2 + b^2 = c^2.

this is the correct way of solving the problem:

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225