Mathematics

Question

if square root of 405 rounded to the nearest thousandth is 20.125  how do u simplify to get to that answer, thank u.

1 Answer

  • [tex]\sqrt{405}=\sqrt{81\cdot5}=\sqrt{81}\cdot\sqrt5=9\sqrt5\approx9\cdot2.23606=20.12454\approx20.125[/tex]