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A biologist is researching the population density of antelopes near a watering hole. The biologist counts 32 antelopes within a radius of  3/4 km of the watering hole.


What is the population density of antelopes?


Enter your answer in the box.


Use 3.14 for pi and round only your final answer to the nearest whole number.


= Blank  antelopes/km²

 Jun 9, 2019

The area (in km^2)  = (3.14) (.75)^2


So...the density is


32 / [ (3.14) (.75)^2 ]  ≈    18 antelopes/km^2



cool cool cool

 Jun 9, 2019

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