How do I multiply a fraction by a square root? For example: 1/4 * sqrt(72). PLEASE HELP EXAM TOMORROW!!!!
2007-05-23 12:51:09 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
You could just write sqrt(72)/4. Or you could reduce it.
2*sqrt(18)/4
6*sqrt(2)/4
3*sqrt(2)/2
2007-05-23 12:56:03 · answer #1 · answered by TychaBrahe 7 · 1⤊ 0⤋
Just like multiplying anything else with fractions. sqrt(72) is a numerator, so multiply it through the top. you get sqrt(72)/4 which equals 3(sqrt(2))/2
2007-05-23 12:56:34 · answer #2 · answered by jsoos 3 · 0⤊ 0⤋
js multiply sqrt 72 with the numerator..so itd be sqrt 72 / 4....also dun forget to simplify into 6 sqrt 2 / 4 which equals 3 sqrt 2 / 2..good luck on ur test
2007-05-23 12:56:51 · answer #3 · answered by bigbill327 2 · 0⤊ 0⤋
Multiply the square root portion by the numerator ( 1 in your example ) and then divide that by the denominator (4).
2007-05-23 13:02:36 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Just follow the usual rule for multiplying a fraction by anything. Just multiply the numerator by the other thing, whatever it is.
2007-05-23 13:12:11 · answer #5 · answered by Renaissance Man 5 · 0⤊ 0⤋
1/4 * sqrt(72). =1/4*6*sqrt(2)=3/2 sqrt(2)=3/sqrt(2).answer
2007-05-23 12:58:58 · answer #6 · answered by Anonymous · 0⤊ 0⤋
go 72(square root)/1 * 1/4 so you get square root of 72/4
then you get 8.49 ( square root of 72)/4 so the answere is 2.12
2007-05-23 12:56:48 · answer #7 · answered by Charlie 2 · 0⤊ 0⤋