caleb's grade was changed by -18 points because he did not complete some homework assignments. If he got -3 points for each assignment, how many assignments did he not complete?

He got 6 assignments that he did not answer

Step-by-step explanation:

You have to divide 18 to 3

Wellcome

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 divide them and then you get the answer i took this class this year

step-by-step explanation: