In a between-subjects 2x2 factorial design with 200 total participants, how many participants should be randomly assigned to each factorial combination

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

The center on a target has a diameter of 5 inches. the whole target has a diameter of 25 inches. complete the explanation for what part of the whole target is the center. the center of the target takes up % of the whole target.

Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?