A runner goes for a long run in the mountain covering 25kilometers in five hours. Her distance is described by the function.
d(t) =
35
t3
+
35
t
Where d(t) is in km and t is in hours, 0 st 35
The derivative function is given as .
>> d(t) = 2 2 -
35
35
t +
2
Find the runners minimum speed and the time when this occurs

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4