A passenger and a freight train are traveling in the same direct on a parallel set of tracks. The speed of the passenger train is 70 km/h and the speed of the freight train is 30 km/h. How long is the passenger train if it took it 3 minutes to pass the freight train that is 1400 meters long?HEP

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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.