True when the rays represent vectors. Not always true otherwise. This is partly because with vectors ab is not the same as ba whereas with ordinary lines such a distinction is not important.
False
False. It could be the first letter.
True
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A line with only one endpoint is a ray. One end has a point, and the other has an arrow to represent how the line continues forever.-------------------------->
Each point is called a vertex.
true
False. It could be the first letter.
True
Yes. If your ray's endpoint is the letter A and it goes on forever in the direction of the letter B, that is not the same as a ray that starts at the letter B and goes on forever in the direction of the letter A. So always name your ray starting with the endpoint letter.
If the first letter is in Capitals and the second letter isn't, it is simply the name of one Element e.g. Feis Iron. If both the second and the first letters are in Captials there are two elements. e.g. CO which is Carbon Monoxide.Brad, U.K.
ali baba
---> da
Mucus ,
There is no president who meets your criteria.
A?I?o? /S?e?d???
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cider