Answer:
D
Step-by-step explanation:
The answer is D because a circle has at least a 360 degree and a 180 is a half circle.
Step-by-step explanation:
(3X-20)+(3X+5)=111(( SINCE 111 IS TOTAL ANGLE
6X-15=111
6X=126
X=21
EFG=3×21-20
=63-20=43
Step-by-step explanation:
3×10^10 is the scientific notation of 30000000000
Answer:
Step-by-step explanation:
I think this is it but you question want super clear
A = C/2r
A binomial squared is written like

So, we have 
So, we want to complete the square 
We can add and subtract 9 to write
