To find the area of a circle find the radius and square it then multiply by PI
Area = PI x r^2
Answer:
y=-2x+2
Step-by-step explanation:
hope it helps!
3/(5/4) = x/1
x = 12/5 = 2.4 Problems/h
Let 
be the speed of train A, and let's set the origin in the initial position of train A. The equations of motion are
where 
are the positions of trains A and B respectively, and t is the time in hours.
The two trains meet if and only if 
, and we know that this happens after two hours, i.e. at 
Solving this equation for v we have
So, train A is travelling at 105 km/h. This implies that train B travels at
First Distribute, then subtract and you’ll get -4x+3
