Question
A coal-burning electrical generating plant emits sulfur dioxide into the surrounding air. The concentration C(x), in parts per million,is approximately given by the function:
C(x)= 0.5/x^2,
where x is the distance away from the plant in miles. The instantaneous rate of change of sulfur dioxide concentration:
A) 5 miles from the plant=____
B) 8 miles from the plant=____
C(x)= 0.5/x^2,
where x is the distance away from the plant in miles. The instantaneous rate of change of sulfur dioxide concentration:
A) 5 miles from the plant=____
B) 8 miles from the plant=____
Answers
Reiny
C ' (x) = - x^-3 or -1/x^3
when x = 5, C ' (5) = -1/125
when x = 8 , .......
when x = 5, C ' (5) = -1/125
when x = 8 , .......