Old Mac D purchased a pool with a capacity of 100 gallons. One day at 1pm he placed a hose that filled it at 5g/h. After 10 hours, farm animals started drinking water at 2g/h.5 hours after that, farmer put in a 2nd hose that filled it at a rate if 4g/h. when did he have a pool full of water?

center (1,3) with radius 6

step-by-step explanation:

we must complete the square to find the center and radius of the circle.

first make sure the x and y squared terms have 1 as their coefficients. we also make sure x and y terms together.

we now create space between the x and y terms with parenthesis.

we complete the square by taking the middle terms -2x and the -6y - divide each and square them.

we add the squares to both sides.

simplify.

and write the quadratics in factored form.

the center is (h,k) or (1,3). the radius is the square root of 36 which is 6.