herme519 asked in 科學及數學數學 · 6 years ago

f.3indice.numeral systems

f.3indice.numeral systems

圖片參考:http://imgcld.yimg.com/8/n/HA00101881/o/2013080715...

1 Answer

Rating
  • 6 years ago
    Best Answer

    26. p^8/q^4*q^(-3)/p^3

    = p^(8-3)*q^(-3-4)

    =p^5*q^(-7)

    =p^5/q^7

    27. g^2/h^(-4)/[h^3/g^(-2)]

    =g^2*h^4/h^3*g^(-2)

    =h

    28. 1.05*10^4-(2.1*10^(-8))*(1.9*10^11)

    =1.05*10^4-3.99*10^3

    =10.5*10^3-3.99*10^3

    =(10.5-3.99)*10^3

    =6.51*10^3

    29. 3^(x+2)=3^(3x)

    --> 3x=x+2

    --> x=1

Still have questions? Get your answers by asking now.