Answers by Marius T
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Answers by Marius T

Answers by Marius T
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Chapter on the life and works of Ptolemy. Which sentence in this excerpt from Great Astronomers shows that Ptolemy’s theory was flawed, but that he was still the undisputed authority on astronomy for centuries?
answered Dec 10, 2017
5 votes
19.2k views
Is it possible for a equilateral triangle to have an obtuse angle?
answered Mar 15, 2017
0 votes
120k views
What is a set of three numbers that have a gcf of 13?
answered Mar 8, 2016
5 votes
127k views
If you add 5 to me and then divide by 9, you get 3. what number am I?
answered Aug 19, 2015
3 votes
225k views
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