Solve for x. Round your answer to the nearest whole number.

C. x=12

Step-by-step explanation:

imagine a circle with is center being the corner with the 40 degree angle. and a radius of 19.

and now turn the picture by 90 degrees or 270 degrees (not important, this would be just to visualize things better).

x is actually sine of the 40 degree angle multiplied by the radius (19).

x = sin(40)×19 = 12 (12.21296...)

the answer is 1/4

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.