A city is built around a circular lake that has a radius of 1 mile. The population density of the city is f (r) people per square mile, where r is the distance from thecenter of the lake, in miles. Which of the following expressions gives the number of people who live within 1 mile of the lake?

Respuesta :

intergral 2pi rf(r) dr from 1 to 2 is the expression that gives the number of people who live within 1 mile of the lake. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.