If 12 men are needed to run 4 machines, how many men are needed to run 20 machines?

12/4=x/20

x=60

60 people are needed

4x3=12 right. Then 20x3=60.

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.

you need to rotate this triangle about the origin 270 degrees clockwise to create the full square.