Answer:
12
Step-by-step explanation:

The plot of the PDF shows the distribution is symmetric. This means that the mean is the same as the median, and that the 50% of the distribution lies to other side of this mean, i.e.

For this distribution,
.
The sum of the interior angles of a triangle is 180 degrees
2x-9+3x+x+3=180
6x-6=180
6x=186
x=31
A=2(31)-9
A=62-9
A=53
Answer:
30 is the least common factor or lcm
Step-by-step explanation:
when adding fractions you always have to find the lcm
X(5x-2) thats how you factor