use cross products
(3r+6) *2 = 9*(2r-4)
6r+12 = 18r-36 distribute
12 = 12 r -36 subtract 6r from each side
48 = 12r add 36 to each side
4=r divide by 12
-(x+1)^2 + 3
move 3 units up, 1 unit to the left, and a reflection from x^2.
Answer:
..............................................yes
Step-by-step explanation:
lol
The circumference C=2 pi r and area A=pi r^2
A=300 cm^2
300=pi r^2 we divide by pi
300/3.14=r^2
r^2=95.55
r=sqrt 95.55
r=9.77
C=2*3.14*9.77=61.36
