units of study

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Across
  1. 2. the amount of money borrowed or invested
  2. 4. the center of the parabola
  3. 5. law an equation relating the lengths of the sides of a cosine of one of its angles
  4. 6. unfairly prejudiced for or against someone or something
  5. 8. add up all the numbers, then divide by how many numbers there are
  6. 9. a result, the way things turn out
  7. 11. of symmetry A line through a shape so that each side is a mirror image
  8. 13. the points where the graph of the quadratic equation crosses the x-axis
  9. 15. the area of variation between upper and lower limits on a particular scale
Down
  1. 1. dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles
  2. 3. a smooth curve
  3. 7. this number occurs the most
  4. 10. a test to assess its suitability or performance of something
  5. 12. the middle number is called the
  6. 14. law compares the total length of the any side of a triangle with the sines of its angles