Answer:
About 45.22
Step-by-step explanation:
Radius x 2 x π
49/12
Just mulitply the top and the bottom across.
7*7/4*3
49/12
Answer:

Step-by-step explanation:
Given


Required
How fast is the ball seem to be moving?
This question illustrates relative velocity;
Since the ball and the train moves in the same direction, the required velocity relative to the person standing behind is:

i.e. we add both velocities


Answer:
b<58/5
Step-by-step explanation: