attempted 100 maths problems. each of them solved 60 each exactly. we call a problem easy if all three solved it and difficult is one student solved it. given each problem was solved by one student at least, find the difference between difficult and easy problems

i think it will be zero as slope has a formula of difference between initial and final distance divided by itz time interval

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.

step-by-step explanation: