Factoring

a. Convert (11101)2 to base 16. b. Use the Euclidean algorithm to find gcd(34,21).

I need help, with the Big O

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Big-Oh

Use the definition of the big-oh to prove that ... (see attachment)

Graphs and Their Representations

If all the nodes of a simple, connected, planar graph have degree 4 and the number of arcs is 12, into how many regions does it divide the plane?

Graphs and Their Representations

Describe the adjacency matrix for Kn, the simple complete graph with n nodes.