The upper semicircle ABCD has radius R=2 and area
and the lower semicircle AD has radius r=1 and area
. The whole fugure area is
.
The perimeter consists of upper semicircle length, lower semicircle length and CD length.
and the perimeter
Answer:
x>−6,x<−12
Step-by-step explanation:
Break down the problem into these 2 equations.
x+9>3x+9>3
-(x+9)>3−(x+9)>3
Solve the 1st equation: x+9>3x+9>3.
x>-6x>−6
3 Solve the 2nd equation: -(x+9)>3−(x+9)>3.
x<-12x<−12
Collect all solutions.
x>-6,x<-12x>−6,x<−12
The answer should be the second one
The answer is (7/9, -5/9)
(7 over 9 and negative 5 over 9)