Sample space = HHH, HHT, HTH, THH, TTT, TTH, THT, HTT (8 possibilities)
Desirable outcomes = TTH, THT, TTH (3 possibilities)
Required probability = 3/8
the first one is 9
I don't even understand the question
Answer:
The answer is 
.
Step-by-step explanation:
The distance formula:

.
☆All we need to do is plug in!
