The measure of ∠M is 57°. What is the measure of its complementary angle?

A. 33°
B. 90°
C. 123°
D. 180°

A) 33

Step-by-step explanation:

Complementary angles mean they add up do 90. SO x+57 = 90

so then x=33 the correct answer is A)

A: 33

Step-by-step explanation:

complementary angles are two angles that sum to 90.

In this case you'd be doing 90-57 to get the other angle that'd sum to 90.

90-57= 33

33+57 = 90.  

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.