Ask a New Question
Search
The area A = πr2 of a circular water ripple changes with the radius. At what rate does the area change with respect to the radius when r = 4ft?
1 answer
A = π r^2
dA/dr = 2πr
so when r = 4
dA/dr = 8π
Ask a New Question
or
answer this question
.
Similar Questions
A stone dropped into water produces a circular ripple which increases in radius at a rate of 1.50 m/s. How fast is the area
1 answer
A stone dropped into a still pond sends out a circular ripple whose radius increases at a constant rate of 2.6 ft/s.
(a) How
2 answers
1) If y = 2x3 - 4x and dx, dt equals 4 , find dy/ dt when x = 1.
2) The area A = πr^2 of a circular water ripple changes with
3 answers
A stone is dropped into a still pond sends out a circular ripple whose radius increases at a constant rate of 2 meters per
1 answer
more similar questions