Answer:
A, 36
Step-by-step explanation:
There are 180 degrees in a triangle. 180-(65+79) = 36.
Answer:
We know that the sum of the degrees of the vertices of the graph is twice the number of edges of the graph.
Let
be a graph with vertices 
Then
where
is the number of edges of the graph. Since the graph is regular of degree r then all vertices have degree r. Thus,

<span>8u+9v+3u−5v
= 11u + 4v
answer is </span><span>c. 11u + 4v</span>
Answer: G=4
Step-by-step explanation:
In the figure below
1) Using the theorem of similar triangles (ΔBXY and ΔBAC),

Where

Thus,

thus, BC = 7.5
2) BX = 9, BA = 15, BY = 15, YC = y
In the above diagram,

Thus, from the theorem of similar triangles,

solving for y, we have

thus, YC = 10.