About 1.15 million people live in a circular region with a population density of about 18,075 people per square kilometer. find the radius of the region. round your answer to the nearest tenth.

Given:

Population in circular region = 1.15 million

Population Density = 18075 people per square kilometer

Formula Used:

We need to make use of the below formula to find the area of circular region.

Applying the concept:

Substituting the given information in the formula above we get...

Conclusion:

The radius of the circular region rounded to the nearest tenth is 4.5 km.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square