What is the indicated real nth root(s) of a when n=2 and a=36

Tell me how you got the it use the figures to answer questions 1and 2. in each diagram, line k is parallel to line l, and line t intersects lines. 1. based on the diagrams, what is the value of x? 2. how would you verify your answer for x?

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Fast! find the length of cu. the triangles are similar. show your work.