Answer:
99%
Step-by-step explanation:
That depends on whether you want to round to the nearest ten, the nearest
hundred, or the nearest thousand. Each of those answers is different.
Answer:
They traveling at
in backward direction.
Step-by-step explanation:
Given mass of Ammy 
and velocity is forward at 
Also, mass of Jenny 
Who is travelling in opposite direction 
Let velocity in forward direction is positive and velocity in backward direction is negative.
Also, velocity after crash is 
As they crashed into each other and they moved as one mass. We can apply principle of conservation of momentum.
Conservation of momentum says momentum before collision should equal to momentum after collision.


So, velocity after collision
≅
is in opposite direction. That is the direction of Jenny.
All of them would be true so I would say the answer would be D.
hope that helped.
Cos can not be greater than 1 therefore it’s not possible