A: 3000 feet
Hope this helped :)
Factoring the cubic you get: <span>(x - 2)^2 (x-4) , so we know the multiplicity is the amount of times a root shows in an equation because the equation (x-2) has a exponent of 2 that means the root 2 has a multiplicity of 2.</span>
Answer: 2
Everything is "=" except 5/12.
Good luck! :)
The two laws of motion are

Since Mr Sim's speed is 15 km/h less that Mr Low's, we have

Note that the distance d is the same for both equations, because they traveled the same path.
20 minutes is 1/3 of a hour, so at t=1/3 Mr Low traveled the whole distance, while at the same time Mr Sim traveled 4/5 of the distance:

If we multiply Sim's equation by 5/4, we have

Since the left hand sides are equal, we equal the right hand side as well:

Multiply both sides by 12:

Expand the right hand side:

Which implies
