Mathematics, 13.07.2019 01:00 vladisking888

Acircular region with a 4-mile radius has a population density of about 6366 people per square mile. find the number of people who live in the region.

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Answer from: Packergood

The number of people who live in the region is 319,990 people

From the question,

The radius of the circular region is 4-mile and

Population density is about 6366 people per square mile

To determine the number of people who live in the region,

From the formula for population density

$Population \ density = \frac{Number \ of \ people }{Land \ area}$

∴ $Number \ of \ people = Population \ density \times Land \ area$

Therefore, we will first determine the land area of the circular region.

Since, the region is circular, we can determine the area of the region using the formula for finding area of a circle.

Area of a circle is given by the formula

$A = \pi r^{2}$

Where is the area

and is the radius

From the question

$r = 4 \ mile$

∴ Area of the region = $\pi \times 4^{2}$

Area of the region = $\pi \times 16$

Take $\pi = 3.14159$

∴ Area of the region = $3.14159 \times 16$

Area of the region = $50.26544 \ square \ mile$

Now, for the number of people who live in the region,

Put the values into the equation

$Number \ of \ people = Population \ density \times Land \ area$

From the question, population density = 6366 people per square mile

From above, area of the region = 50.26544 square mile

$Number \ of \ people = 6366 \times 50.26544$

$Number \ of \ people = 319989.79104$

∴ Number of people ≅ 319990 people

Hence, the number of people who live in the region is 319,990 people.

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Answer from: yungdaggerdic4543

The number of people live in circular region are 319,990

Step-by-step explanation:

A circular region with a 4-mile radius has a population density of about 6366 people per square mile.

[tex[\text{Population density }=6366\text{ people/mi}^2[/tex]

Area of circular region = πr²

where, radius (r) = 4 miles

Area of circular region = π x 4²

= 16π mi²

We need to find number of people who live in the circular region .

Number of people = Population density x Area of region

Number of people = 6366 x 16π

= 319,990

Hence, The number of people live in circular region are 319,990

Answer from: Quest

the most boring ever written

step-by-step explanation:

i am writing something. yes, i plan to make it the most boring thing ever written. i go to the store. a car is parked. many cars are parked or moving. some are blue. some are tan. they have windows. in the store, there are items for sale. these include such things as soap, detergent, magazines, and lettuce. you can enhance your life with these products. soap can be used for bathing, be it in a bathtub or in a shower. apply the soap to your body and rinse. detergent is used to wash clothes. place your dirty clothes into a washing machine and add some detergent as directed on the box. select the appropriate settings on your washing machine and you should be ready to begin. magazines are stapled reading material made with glossy paper, and they cover a wide variety of topics, ranging from news and politics to business and stock market information. some magazines are concerned with more recreational topics, like sports card collecting or different kinds of hairstyles. lettuce is a vegetable.

Answer from: Quest

Im pretty sure it is a

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Acircular region with a 4-mile radius has a population density of about 6366 people per square mile....