Solve and learn math

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Across
  1. 1. is the process of extraction the underlying essence of a mathematical concept
  2. 5. way of communication with other people with the use of sounds or conventions symbols.
  3. 6. you can use it a placeholder when you want to talk about something
  4. 7. rule that relates every element in one set
  5. 10. is available regularity in the world or in man-made design
  6. 11. comes from the greek word mathema
  7. 12. undirected graphs in which any two vertices are connected by exactly one pat
  8. 14. is any estimate of statistical attributes taken from a sample
  9. 15. comes from the Greek Word which means “to measure together”
Down
  1. 2. part of population determined by sampling procedures
  2. 3. to the totality of all elements or persons for which one has on interest at a particular time
  3. 4. set of all input or first values of a function
  4. 8. means “that which is learnt” “lesson” in Modern Greek
  5. 9. any set of ordered pair numbers
  6. 13. is an additional mathematical object that is related to that given set in some particular characteristic or manner