Answer:
2x^2+13x+20 is the simplified answer
the first option is the correct one
The main idea is using the Pythagorean formula to find the length of line segment
.
Alr so you use the formula 
is already given and is 
and
is 
So using algebraic rules you'll get
as:

Now using the formula:
, you can find the area of tri ABD and CBD which would be
and
so add them up and you get
!
Answer:
x=28
Step-by-step explanation:
I am assuming the mean is arithmetic mean. So we first add up the numbers:
6+10+12+18+16+x
=22+10+30+x
=22+40+x
=62+x
Then since there's 6 numbers in total, we have an equation:

The answer is 28!
Have a nice day! :)
Answer:
67
Step-by-step explanation:
there are 6 birds and you add 7 and this is what you get