Use the figure for exercises 1-4 identify all pairs of each type of angle (Asking again bc a bot answered me and I literally have no idea :,/)

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

What is the value of the discrimination for the quadratic equation 0=×2+2+×2

If cos(θ)=2853 with θin q iv, what is sin(θ)?