Question

A biologist is researching the population density of salamanders near a pond. The biologist counts 152 salamanders within a radius of 12 mi of the pond.

What is the population density of salamanders?

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

Answer 1

194 salamanders/miles^2

Explanation:

Population Density = Population/Area

Area = pi r squared = 0.7853 mi^2

152/0.7853 = 193.5

Round 193.5 to 194

Population Density = 194 salamanders/miles^2

Answer 2

194 salamanders/mi
`^(2)`