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CLICK ON IT! i dont know how to type a radical on the com..sorryy PLEASE EXPLAIN. ugh im not getting the right answer. thanks so much. much love
2007-10-09 08:28:21 · 5 answers · asked by hOLLiSTER gURLiE! 1 in Science & Mathematics ➔ Mathematics
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(√15)/[5√(20)]
=√3√5 / 10√5= √3 / 10
2007-10-09 08:57:48 · answer #1 · answered by mbdwy 5 · 0⤊ 0⤋
= â5â3 / 5â5â4
= â3 / (5*2)
= â3 / 10
2007-10-09 08:35:44 · answer #2 · answered by gebobs 6 · 0⤊ 0⤋
The numerator will be the sqrt of 5 times the sqrt of 3
The denominator will be 5 sqrt of 5 times the sqrt of 4
The sqrts will cancel, and the sqrt of 4 is 2 so you have
the sqrt of 3 over 10
2007-10-09 08:35:56 · answer #3 · answered by mom 7 · 0⤊ 0⤋
Well, first off... I usually will write that equation as such...
sqrt ( 15) / ( 5 sqrt (20) )
Well, first off. sqrt 15 cant be simplified... but it can be factored to make sqrt 5 * sqrt 3... you'll see why in a min.
sqrt of 20 can be separated as sqrt 4 * sqrt 5.... or... 2 sqrt 5
the sqrt 5's cancel.... and you are left with (sqrt 3) / 10
2007-10-09 08:35:15 · answer #4 · answered by Anonymous · 1⤊ 0⤋
Its an easier way of doing a decimal. Like ok, root of 15 divided by (5 times the root of 20) is your answer lol
2007-10-09 08:36:46 · answer #5 · answered by thedumbone 4 · 0⤊ 0⤋