anonymous
  • anonymous
PLEASE HELP WITH RATIONALIZING DENOMINATORS
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
example?
anonymous
  • anonymous
\[D= SQRT* 3(1450) OVER 2\]
anonymous
  • anonymous
It's a word problem. it is a principle of radical that is over the 3h and 2 fraction. h=1450

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anonymous
  • anonymous
\[\sqrt[3]{\frac{1450}{2}}\]
anonymous
  • anonymous
no
anonymous
  • anonymous
is it a square root or a cube root?
anonymous
  • anonymous
d=sqrt* 3H over 2
anonymous
  • anonymous
square root--the one that is longer and then splits into two smaller ones as the next step.
anonymous
  • anonymous
3h and 2 is a fraction. sqrt goes over the both of them--just one. I get that you then break it down by placing two radicals over each den and num. lost on the next step
anonymous
  • anonymous
\[\sqrt{\frac{3\times 1450}{2}}\]
anonymous
  • anonymous
correct
anonymous
  • anonymous
that one?
anonymous
  • anonymous
and am trying to find D
anonymous
  • anonymous
divide first, then take the square root
anonymous
  • anonymous
so take the den of 2 and place it under D?
anonymous
  • anonymous
before plugging in H=1450?
anonymous
  • anonymous
yes you can divide first. you have \[\frac{3\times 1450}{2}=2175\]
anonymous
  • anonymous
mhm
anonymous
  • anonymous
would I have to square both sets of numbers?
anonymous
  • anonymous
then take the square root. \[\frac{\sqrt{a}}{\sqrt{b}}=\sqrt{\frac{a}{b}}\]
anonymous
  • anonymous
or both sides of the equal sign??
anonymous
  • anonymous
if you are just trying to compute the square root of that number, no. just use a calculator
anonymous
  • anonymous
okay- go one
anonymous
  • anonymous
go on
anonymous
  • anonymous
rationalizing denominators means something else. for example \[\frac{1}{\sqrt{2}}=\frac{\sqrt{2}}{2}\]
anonymous
  • anonymous
but if you just want a number you can compute inside the radical and then take the square root
anonymous
  • anonymous
what did you get for the answer?
anonymous
  • anonymous
46.64 rounded. in radical form i got \[5\sqrt{87}\]
anonymous
  • anonymous
that is not the answer.
anonymous
  • anonymous
it is 47, but thanks any way. haha
anonymous
  • anonymous
ok fine lol

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