If a family has three pets, what is the theoretical probability that they have three dogs or three cats?

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

If the value of cos330°is√3/2 then find cos 165°.

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?