erinbrewster1299
09.10.2019 •
Mathematics
If a=x+1, b=x^+2x-1, c=2x what is ab+c in simplest form
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Ответ:
x^3 + 2x^2 -x + x^2 + 2x -1 + 2x
x^3 + 3x^2 + 3x -1
Ответ:
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!