The average speed of the delivery truck would be 136.5
Answer:
Step-by-step explanation:
Rule: the largest angle is ALWAYS opposite the longest side, and the converse is also true: the longest side is always opposite the largest angle. So the largest side is E which is B
Answer:
75500
Step-by-step explanation:
Im so confused on the question
<span>A tree must be connected by definition. This means that there can be no vertices of degree 0 in a tree.
Assume for contradiction that we have v vertices and that v - 1 have degree at least degree two. Then we know that the sum of the degrees of the vertices is at least 1 + 2(v-1) which is equal to 2v - 1. Therefore we know that the number of edges must be at least v- 1/2 . But this is impossible because a tree must have exactly v - 1 edges.
Thus we have shown by contradiction that every tree has at least two vertices.</span>
