(r/s)(3) please help

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Tamar is measuring the sides and angles of tuv to determine whether it is congruent to the triangle below. which pair of measurements would eliminate the possibility that the triangles are congruent