Multiple Choice
In calm waters oil spilling from the ruptured hull of a grounded tanker spreads in all directions. If the area polluted is a circle and its radius is increasing at a rate of 5 ft/sec, determine how fast the area is increasing when the radius of the circle is 40 ft.
A) 200 ft2/sec
B) 400π ft2/sec
C) 400 ft2/sec
Correct Answer:
Verified
Correct Answer:
Verified
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