Answer:
Step-by-step explanation:
To differentiate this we will need to use the chain rule:
.
We will also have to keep in mind how to differentiate the following:
with repect to
with respect to .
Derivative of both sides:
The man will take 2.52 hours to travel 63. The math is simple all you have to do is divide 63 by 25 and get the amount of time that it will take him to travel that amount of time.
You divide 110 by 200 to get 0.55. Move the decimal over two places to the right to get your percentage of 55%.
9(.80) = 7.2(.80) = 5.76(.80) = 4.608. round it and it is 4.6 feet