1) 3.2 x 10^9 2) 2.9 x 10^-10 3) 4.16 x 10^17
Answer:
The answer is

Step-by-step explanation:
We have the points (2000,91) and (5000,82)
Then

Answer:
In group A, they have at least one 90 degree angle. In Group B, they do not have any 90 degree angles.