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

Ben and cam are scuba diving. ben is 15.815.8 meters below the surface of the water. cam is 4.24.2 meters above ben. what is cam's position relative to the surface of the water? choose 1 choose 1 (choice a) a 11.611.6 meters above the surface of the water (choice b) b 11.611.6 meters below the surface of the water (choice c) c 2020 meters above the surface of the water (choice d) d 20 meters below the surface of the water