Perpendicular = Negative Reciprocal
-3 --> -1/3 ---> 1/3
Therefore it is C
Answer:
Step-by-step explanation:
7:8 is 7/8
9:5
The Great War (WW1) killed many empires who had been around for hundreds of years. It introduced some very inhumane weapons such as gas, and was the 1st war when old tactics met new ones. Back then, a war on this scale has never been seen.
It also gave birth to many new nations
