Show that an irregular graph is 2-arc-transitive if and only if it is a star.

In center of the Pentagon of each line is a stand to inside
Of Pentagon .so where from a star.
So,an irregular graph is 2 arc transitive if and only if it is a star.
Hence proved.
Show that an irregular graph is 2-arc-transitive if and only if it is a star.
Show that an irregular graph is 2-arc-transitive if and only if itis a star.
You measure a star to have a parallax angle of 0.14 arc-seconds. What fraction of a degree is this? Answer: /Problem 2 - Parallax to human eye 2. [3pt] By how many times would you have to magnify this effect for it to be visible to the human eye? (The limit of human vision is about 1 arc-minute) Answer: 3. [3pt] What is the distance to this star in parsecs? Answer: 4. [2pt] What is the distance to this star...
*3. Show that a diffeomorphism φ: S S is an isometry if and only if the arc length of any parametrized curve in S is equal to the arc length of the image curve by ф.
*3. Show that a diffeomorphism φ: S S is an isometry if and only if the arc length of any parametrized curve in S is equal to the arc length of the image curve by ф.
Draw the digraph for each of the graph powers that make up the
transitive closure.
We were unable to transcribe this image1 2 3 -OOF
What is the distance to a star if the parallax is 0.022 arc-seconds? Give your answer to 1 decimal place Note: Answer was 45.5, but I just don't get it
1. Erika has preferences that are complete, transitive, continuous, monotonic, and convex. Her utility function is U(x1, x2), where goods 1 and 2 are the only goods she values. Her income is M, and the prices of the goods are p1 and p2; assume M, p1 and p2 are positive numbers. a. Suppose M decreases, good 1 is normal, and good 2 is inferior. Using a graph, show what happens to the demand for each good. b. Is it possible...
2. (a) Prove the transitive property for polynomial-time mapping reductions (b) Using the transitivity, show that if A Sp B and A is NP-Hard, then B is NP-Hard as well
The parallax of the star Sirius, as viewed from Earth, is about 0.379 arc seconds. How many parsecs away is it? (Hint: D=1/p)
Find the arc length of the graph of the function over the indicated interval.y = 2/3x3/2 + 4
4. (a) In a projective plane of order n, a set of k points with no three on the same line, is called a k-arc. Show that a k-arc has size at most n +2 [10 marks (b) An (n +2)-arc is called a hyperoval. Show that a necessary condition for the existence of hyperovals is that n is even. 15 marks)
4. (a) In a projective plane of order n, a set of k points with no three on...