Answer:
x=13
Step-by-step explanation:
x+x+3+x-2+3(x+3)-1=87
x+x+3+x-2+33x+9-1=87
6x+3-2+9-1=87
6x+9=87
6x=87-9
6x=78
48
-70
the answer is 15 I'm positive
2 pi
The radius is 2
The area of a circle is
A = pi r^2
We have 1/2 of a circle so
1/2 A = 1/2 pi r^2
=1/2 pi ( 2)^2
=1/2 pi *4
= 2 pi
