SOLUTION: Please help me. I do not understand this at all. I am supposed to solve: -sqrt of 81/144

Algebra ->  Square-cubic-other-roots -> SOLUTION: Please help me. I do not understand this at all. I am supposed to solve: -sqrt of 81/144      Log On


   

Question 627464: Please help me. I do not understand this at all. I am supposed to solve: -sqrt of 81/144
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
81+=+9%5E2 and 144+=+12%5E2

So the square root of 81 is 9. The square root of 144 is 12

Therefore

-sqrt%2881%2F144%29+=+-sqrt%2881%29%2Fsqrt%28144%29+=+-9%2F12+=+-3%2F4

So

-sqrt%2881%2F144%29+=+-3%2F4

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