Give a counterexample to the conjecture that if there is a path fromu to v in a directed graph g,
and ifd[u] < d[v] in a depth-first search of g, thenv is a descendant of u in the depth-first forest
produced?

Which virus-infecting components are email messages prone to carry? one of the problems associated with the use of email communication is that email messages are prone to carry virus-infecting .

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron (not a pyramid). the pyraminx shown below has edges 15\,\text{cm}15cm15, space, c, m long and vertical height h=12.2\,\text{cm}h=12.2cmh, equals, 12, point, 2, space, c, m. the triangle drawn with dashed lines is a right triangle. what is the distance rrr? round your answer to the nearest tenth.

1. before plugging in a new device to a computer you should unplug all other devices turn off the computer turn on the computer 2. many of the maintenance tools for a computer can be found in the control panel under administrative tools display personalization