math

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Across
  1. 2. Which formula is d=(x2-x1)(ex2)+(y2-y1)(ex2
  2. 4. Which arithmetic formula is a(n-1)+d
  3. 5. Which formula is x=x1+x2+x3+etc+xn/n
  4. 6. Which quadratic equation is y=a(x-1)(x-3)
  5. 9. Which linear equation is Ax+By=C
  6. 10. Which formula is m= y2-y1/x2-x1
  7. 11. Which quadratic equation is y=ax(ex2)+bx+c
  8. 12. Which geometric formula is An=a1 x r(ex n-1)
  9. 13. Which arithmetic formula is a(n)=a1+d(n-1)
Down
  1. 1. Which geometric formula is An=r(an-1)
  2. 3. Which formula is x=-b(+-)b(ex2)+4ac/2a
  3. 7. Which linear equation is y=mx+b
  4. 8. Where does y=ab come from