number puzzle

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123456789101112131415161718
Across
  1. 3. fill in the blank: -6,0,6__
  2. 5. In Circle M, BD=3, KM=6, and KP=2√7, what is KL?
  3. 6. What are the root of y=x³-4x²+x+6
  4. 9. The sum of the first 10 terms of a geometric sequence 3,6,12..
  5. 12. What are the roots of x⁵-5x⁴-3x³+15x²-4x+20=0
  6. 15. Find the longest side of a right triangle if the measurement of the base is 3cm and it's altitude measures 4cm
  7. 16. First term of a sequence if A₁= 1/5 and d=-1/2
  8. 17. Find the 13th term of a harmonic sequence if A₁=1/6 and d=2
Down
  1. 1. The 10th term of An=n/2+1/n
  2. 2. In Circle M, BD=3, KM=6, and KP=2√7, what is AM?
  3. 4. The 6th term in the sequence An+ 3n-6
  4. 7. what is the remainder of 5x²-2x+1
  5. 8. In Circle M, BD=3, KM=6, and KP=2√7, what is CD?
  6. 10. Give the third term in An=n²/3+n/3
  7. 11. The 15th term of An=n/2+1/n
  8. 13. Give the first term in An=n²/3+n/3
  9. 14. In Circle M, BD=3, KM=6, and KP=2√7, what is MD?
  10. 18. fill in the blank: 4,8,12,__,20