1) 9 1/3 - 2 2/3 2) 2 5/12 - 1 8/12
1 answer:
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Answer:
Step-by-step explanation:
<h3> Since the figure is not attached, below you can see a general explanation of the procedure to solve the exercise: </h3>For this exercise you can apply the following formula, which is used to calculate the area of a trapezoid:
Where "B" and "b" are the bases of the trapezoid and "h" is the height.
So, substituting values into the formula and evaluating, you can find the area of trapezoid-shaped region.
Since the population in the trapezoid-shaped region is about 3,000 people, you can find the number of people per square mile dividing the population by the area of the region.
Then, the following expression represents the number of people per square mile in that region:
Answer:
220
Step-by-step explanation:
Given that the freshman class has 160 students.
Each freshman must write three reports from a list of 12 novels that the teacher has assigned them to read
Here order does not matter. Hence combinations can be used.
No of available options = 12
No to be selected =3
Possible number of ways = ways of selecting 3 from 12 where order does not matter
=
Option B is right answer.