Describe the error in finding the number of people who live in a circular region with a 7.5-mile diameter and a population density of 1550 people per square mile. Question 2

The formula for the circumference of a circle was used instead of the formula for the area of a circle.

The diameter was substituted into the formula for the area of a circle instead of the radius.

The expression π⋅7.52 should be in the numerator of the fraction, not the denominator.

The expression π⋅7.52 simplifies to 56.25π2, not 56.25π.

Question 3

Correct the error. Round your answer to the nearest whole number.

The number of people who live in the region is about

.