Using the definition, we have
Subtract 4 from both sides:
Divide both sides by -3:
Please help with this!!!!
1 answer:
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Answer:
r = 3.64 km
Step-by-step explanation:
Given the following information:
- population of the town: 20000 people
- population density : 480 people per square kilometer
=> The area of the town is:
= Total population / population density per square kilometer
As we know, the formula used to find the area of a circle is:
A = π
In this situation, we already knew the area of the town
<=> A = π = 41.776
<=> = 41.776 / 3.14
<=> r = 3.64 km
So the radius of the town is 3.64 km