Solve for the equation for a. k=4a+9ab

Step-by-step explanation:

Given the equation

we have to solve the above equation for a.

Taking a common from RHS, we get

Now, divide the equation throughout by 4+9b, we get

which is required value of a.

she gotta workk that a 2

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.