2007-04-17 07:00:26 · 8 answers · asked by xxbabeiloveuxx 1 in Science & Mathematics ➔ Mathematics
= 1/8^2/3 = 1/4
2007-04-17 07:04:06 · answer #1 · answered by santmann2002 7 · 0⤊ 0⤋
8^(-2/3) = 1/8^(2/3) = 1/2² = 1/4
2007-04-17 07:32:17 · answer #2 · answered by Como 7 · 0⤊ 0⤋
8^(-2/3) = [8^(1/3)]^-2 = 2^-2 = 1/2^2 = 1/4
2007-04-17 07:09:57 · answer #3 · answered by Amit Y 5 · 0⤊ 0⤋
8 exponent -2/3 = 1/8exp2/3 = (1/8 exp 1/3)square = (1/2)square = 1/4
2007-04-17 07:07:49 · answer #4 · answered by Swamy 7 · 0⤊ 0⤋
a negative power means that we flip it from the numerator to the denominator... so we get:
1/(8 ^[2/3])
this is the same as :
1/(cubic root of 8)^2
= 1/2^2 = 1/4
2007-04-17 07:08:54 · answer #5 · answered by Anthony T 3 · 0⤊ 0⤋
(2^3)^(-2/3)
=2^(-2)=1/(2^2)
= - 1/4
2007-04-17 07:10:58 · answer #6 · answered by iyiogrenci 6 · 0⤊ 0⤋
8^(-2/3)=1/(8^(2/3))=1/(3rd root(8^2))=1/(3rd root(64)) = 1/4 = .25
2007-04-17 07:19:48 · answer #7 · answered by moooooooon8 1 · 0⤊ 0⤋
0.25 is the answer
2007-04-17 07:06:07 · answer #8 · answered by crazyduck_united 1 · 0⤊ 0⤋