Evaluate 5+(-3) — 6.
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About 1.75 million people live in a circular region with a 15-mile diameter. Find the population density in people per square mile.
Solution: We are given that the population of a circular region = 1.75 million =
Also we are given the circular region has a diameter = 15 mile
Which means the radius of region mile
Therefore, the area of the circular region
Now the population density per square mile is:
Therefore, the population density per square mile is 6086