In a simple graph, the number of edges is equal to twice the sum of the degrees of the vertices.Group of answer choicesFalseTrue

In a digraph, the sum of the in-degrees is equal to:A. The number of verticesB. The number of edgesC. Twice the number of verticesD. Twice the number of edges

True or False: The sum of the entries in the incidence matrix of any graph is equal to twice the number of edges in the graph.

What is the maximum number of edges in a simple graph with n vertices. Justify your answer.

The column sum in an incidence matrix for a directed graph having no self loop is __________?Group of answer choices012equal to the number of edges

The sum of five consecutive odd numbers is equal to 245.what is the difference between twice the largest odd number and the smallest odd number?