Let a be the 2 × 2 matrix representing the rotation through an angle of α clockwise and let b be the 2 × 2 matrix representing the rotation through an angle of β counterclockwise, where 0 ≤ α, β ≤ 180◦ . for which values of α and β matrices a and b are similar?

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.

answer: 30

step-by-step explanation: its 30 because im a basketball player and stephen curry hits most of his shots so if you put 30 you might make the shot goodluck

hi do you need an answer for your question?

step-by-step explanation: