Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (defiance):
Hello stanger!
OpenStudy (anonymous):
\[(3\div \sqrt{75})-5\]
OpenStudy (anonymous):
plz help :D
OpenStudy (defiance):
First find 75 squared
OpenStudy (jhannybean):
\[\frac{3}{\sqrt{75}} -5\]
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
I MESSED UP
75 should be 11!!!
OpenStudy (defiance):
square root*
OpenStudy (anonymous):
lol my bad
OpenStudy (defiance):
Okay.
OpenStudy (jhannybean):
\[\frac{3}{\sqrt{11}}-5\] is this your problem?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
yes
OpenStudy (jhannybean):
\[\frac{3}{\sqrt{11}} - \frac{5}{1}\] what is the LCD between \(\sqrt{11}\) and 5?
OpenStudy (jhannybean):
sorry,\(\sqrt{11}\) and \(1\) **
OpenStudy (anonymous):
1? :/
OpenStudy (jhannybean):
Not quite, it'd be the multiplication of both of these, \(\sqrt{11} \cdot 1 = \sqrt{11}\)
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
and then what?
OpenStudy (jhannybean):
Now we need a common denominator of \(\sqrt{11}\) for both fractions so we need to multiply the numerator and denominator of \(\dfrac{5}{1}\) by \(\sqrt{11}\)
OpenStudy (jhannybean):
Then we get \[\frac{3}{\sqrt{11}} - \frac{5\sqrt{11}}{\sqrt{11}} = \frac{3-5\sqrt{11}}{\sqrt{11}}\]
OpenStudy (jhannybean):
Not exactly sure what you were looking for though, hmm..