There are 10 doors into a school and eight staircases from the first floor to the second how many possible ways are there for a student to go outside the school and to a classroom on the second floor?

you need to give us more information since we can't answer

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.

look at the picture i have filled out a table for it. hope this .