10. Phil wants to wallpaper the four walls of his room. The room is rectangular and measures 11 ft by 13 ft. The ceiling is 10 ft high. A roll of the wallpaper Alex has chosen is 2.5 ft wide
and 50 ft long. How many rolls should he buy?

college

answer: i think one of the answer is $150 and $300?

step-by-step explanation:

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.