A 30 ^{\circ} - 60 ^{\circ} - 90 ^{\circ}30 ∘
−60
∘
−90
∘
triangle is shown below. Find the length of a and b.

Which statement accurately explains whether a reflection over the y-axis and a 270° counterclockwise rotation would map figure acb onto itself? a coordinate plane with figure acb with point a at 1, 1, c at 3, 4 and b at 5, 1 yes, a″c″b″ is located at a″(1, 1), c″(4, 3), and b″(1, 5) yes, a″c″b′ is located at a″(1, 1), c″(3, 4), and b″(5, 1) no, a″c″b″ is located at a″(1, 1), c″(4, 3), and b″(1, 5) no, a″c″b″ is located at a″(1, 1), c″(3, 4), and b″(5, 1)

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

Which of the symbols correctly relates the two numbers below check all that apply 6? 6