A clothing manufacturer uses the model a= Vf+4 - V36 - f to estimate
the amount of fabric to order from a mill. In the formula, a is the number of
apparel items (in hundreds) and f is the number of units of fabric needed. If
400 apparel items will be manufactured, how many units of fabric should be
ordered?

step-by-step explan mxfcg'k; uafwgzfgjhklhgation:

maybe i can

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.