evaluate 8^-2/3?

1 ⤊

2007-09-21 13:02:44 · 7 answers · asked by Shannon B 2 in Science & Mathematics ➔ Mathematics

= 1 / 8^(2/3)
= 1 / 2 ²
= 1 / 4

2007-09-24 07:23:34 · answer #1 · answered by Como 7 · 0⤊ 0⤋

8^-2/3
= (2^3)^-2/3
= 2^-2
= 1/2^2
=1/4

2007-09-21 20:11:59 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋

1/(â(8^2))

1/(â(8^2))

1/4

2007-09-21 20:15:42 · answer #3 · answered by kat 2 · 0⤊ 0⤋

8^-2/3=1/8^2/3
=1/(2^3)^2/3
=1/2^2=1/4 ans

2007-09-21 20:08:29 · answer #4 · answered by MAHAANIM07 4 · 0⤊ 0⤋

it's 1/4.

2007-09-21 20:11:12 · answer #5 · answered by Mason S 3 · 0⤊ 0⤋

8^-2/3

= 1/(8^(2/3))

= 1/(cube root(8^2))

= 1/(cube root 64)

= 1/4

2007-09-21 20:08:05 · answer #6 · answered by Marvin 4 · 1⤊ 0⤋

.25

2007-09-21 20:08:03 · answer #7 · answered by abhi 1 · 0⤊ 0⤋