helpo!!!
2007-04-22 11:23:25 · 7 answers · asked by airickq7 1 in Science & Mathematics ➔ Mathematics
= root( 4/25) = 2/5
2007-04-22 11:27:16 · answer #1 · answered by hustolemyname 6 · 0⤊ 0⤋
you can reduce the equation from 20over 125 to (4 over 25) then you say well the square root of something is saying basically What times itself equals this number... so the square root of four you say "what times itself equals four" and the answer is "2 times itself equals four" so you say here what times what equals 4 over 25 and when you multiply fractions you multiply the top number by the top number (numerator) and the bottom number by the bottom number (denominator) so you split it up as the square root of 4 over the square root of 25
2 times 2 =4 and 5 times 5 = 25 so the answer is
2/5
or
2 over 5
2007-04-22 18:33:55 · answer #2 · answered by suuppp123 2 · 0⤊ 0⤋
20/125= .16
square root .16=.4
2007-04-22 18:27:48 · answer #3 · answered by peacedove94 2 · 0⤊ 0⤋
root(20/125) reduces to root(4)/root(25), which equals 2/5 or 0.4
2007-04-22 18:31:58 · answer #4 · answered by Anonymous · 0⤊ 0⤋
root(20 over 125) reduces to 2root5 over 5root5 which then reduces to 2/5 or .4
2007-04-22 18:30:08 · answer #5 · answered by paul l 1 · 0⤊ 0⤋
sqrt of 20/sqrt of 125
sqrt of 4 x sqrt of 5
===============
sqrt of 25 x sqrt of 5
answer 2 sqrt of 5
================
5 sqrt of 5
reduced to 2/5=.4
2007-04-22 19:25:51 · answer #6 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
root(20/125)
= root(4/25) [by dividing top and bottom by 5]
= root(4)/root(25) [since root(a*b) = root(a)*root(b)]
= 2/5
or 0.4
2007-04-22 18:35:54 · answer #7 · answered by anotherbsdparent 5 · 0⤊ 0⤋