Subtract 
from both sides.
Square and expand both sides.
9x+36=18x+72
Subtract 9x from both sides.
36=9x+72
Subtract 72 from both sides.
-36=9x
Divide both sides by 9.
-4=x
Your answer would be -4.
I hope this helps :)
Answer:
254.47
Step-by-step explanation:
A=πr2=π·92≈254.469
Okay it might not be right but I say B
Answer:
55 ft
Step-by-step explanation:
Perimeter is the distance round a given shape. For an hexagon, since it has six equal sides, xomsidering that it is regular, its perimeter is given by
P=6a
Where P is the perimeter and a is the length of its sides.
Considering that a is given as 9ft 2 in then
P=6(9ft 2 in)=54 ft 12 in
Since 1 ft is equivalent to 12 inches then the perimeter is 54+1=55 ft
