Question:

A scientist is measuring the levels of a contaminant in a river in parts per million (ppm). The function C = f(d) models the C c

A scientist is measuring the levels of a
contaminant in a river in parts per million (ppm).
The function C = f(d) models the
C
concentration of the contaminant C in the river
at a given distance d, in miles, downstream from
the spill. What are the units of f'(d)?

A scientist is measuring the levels of a contaminant in a river in parts per million (ppm). The function C = f(d) models the C concentration of the contaminant C in the river at a given distance d, in miles, downstream from the spill. What are the units of f'(d)?