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:
Okay so,
Step-by-step explanation:
the first one is
1.25 or 1
second one is
0.5 or 
the third one is
i'm not sure what the question is
the fourth one is
i'm not sure what the question is. Are you dividing?
the fifth one is
153.18
the sixth one is
1010.25
the seventh one is
4.066362
the eight one is
i'm not sure what the question is
Can you make me brainliest please
Act like it's a whole circle and find the perimeter, then divide by 2.
P = 2 * pi * r
P = 2 * 3.14 * 9
P = 56.52
Now divide by 2:
P = 28.26
Answer:
65/32
Step-by-step explanation: