Simplify the following expression:
2x - 2y + 5z - 2x - y + 3z

40 describe the outliers from the scatter plot.

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

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.