Most of the seniors at Roosevelt High School took a math class this year. The graph shows the breakdown: Find the number of degrees for each math class. State the class and the degrees. Show your work.

Step-by-step explanation:

Since, sum of central angles of a circle = 360°

Therefore, sum of all central angles formed by each math class = 360°

And measure of angles formed by each class will be in the same proportion as the percentage of seniors in each class.

Geometry → 27% of 360° = 97.2°

Precalculus → 4% of 360° = 14.4°

Advanced algebra → 33% of 360° = 118.8°

Consumer math → 36% of 360° = 129.6°

That equals to 2500 people per square mile!

Step-by-step explanation:

We have to first get the area of the trapezoid. Which is (((a +b)/2)) * h

a = 8

b = 12

h = 8

Time to solve!

20/2 = 10!

10 * 8 = 80 square miles!

Now let's do 200000/80 to get the amount of people per square mile.

That equals to 2500 people per square mile!