Math!

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Across
  1. 2. the value of the coefficient of the derivative of 3x^2
  2. 6. a quantity to which a value needs to be raised
  3. 9. a regular _____ has interior angles that all equal 140°
  4. 11. a synonym for slope
Down
  1. 1. calculated by multiplying the diameter by pi
  2. 3. a rectangular array of numbers, symbols, or expressions
  3. 4. a shape that has 7 sides
  4. 5. the derivative of sin(x) is ___(x)
  5. 7. the set of input values
  6. 8. ___ cah toa
  7. 10. the one number that is neither positive nor negative