Pls graph this i really need this hurry pls
let's first get rid of the feet and turn everything into inches.
1 foot = 12 inches.
9 * 12 + 5.5 = 113.5
1 * 12 + 10.5 = 22.5
we need a rod that's 113.5 inches long, each section is 22.5 inches.
22.5x = 113.5 simple division here to get 5.
we now do 22.5 * 5 to get 112.5 a little bit off aren't we? so we can just add 1 to how many poles there will be making it 6.
22.5 * 6 = 135 now we are over.
we would need 6 poles which add up to 135 inches.
we can now do 135 - 113.5 to get 21.5 inches left which are left.
if you subtract one equation from the other:
8x + 4y = 16
-8x - 2y = -8
2y = 8
answer is basically a straight horizontal line of y=4 (x can be any number).
the equation for area of a circle is a=πr*2
if your diameter is 13 simply take half of that and plug into the equation
π(6.5)*2 which when put into a calculator comes out to 132.732289