Question

Health department lab officials detected 120,000 bacteria on a dessert plate that has a diameter of 6 inches. What's the approximate population density of the bacteria on the dish? A. 1,062 bacteria/square inch B. 12,739 bacteria/square inch C. 4,246 bacteria/square inch D. 1,111 bacteria/square inch

Answer 1

c

Explanation:

diamiter divided by 2 is 3

3•π²≈30

120,000/30≈4000

formula for area:

r•π²