babygirlali babygirlali
  • 16-08-2018
  • Mathematics
contestada

about 70,000 people live in a circular region with a 30-mile radius. find the population density in people per square mile.

Respuesta :

zandriasalmon
zandriasalmon zandriasalmon
  • 16-08-2018

Solve for the area of the circular region first:

A = pi*r^2

A = pi*(30 mi)^2

A = 2827.43 mi^2

Density = 70000 people/2827.43 mi^2

Density = 24.76 = 25 people/mi^2 <--ANSWER Plz vote brainnliest


Answer Link

Otras preguntas

Why do you think that adult stem cells are found in bone marrow and the lining of the small intestine specifically
A market structure in which many firms sell products that are similar but not identical is known as.
Determine the value of x in the isosceles trapezoid. Please help
Events A and B are dependent. Suppose P(B|A)=0.8 and P(A and B)=0.46. Find P(A).
What did Gregoria Apaza do when she found out that her brother Tupac Katari was arrested??.
Three important factors associated with cohort effects on cognitive functioning are ______, ______, and ______.
2(3 + m) How to expand and simplify ?
According to the Coase Theorem if a property right is well defined and transaction costs are low Multiple choice question. resources will gravitate to their hig
Bob flips a coin. Rob draws the name of one weekday from a bag that has one slip of paper for each day of the week. What is the probability of tails and a say n
If a household tends to spend a relatively large portion of any income it receives, what can we predict about this household