please answer this
2006-09-24 08:48:22 · 14 answers · asked by Tom B 1 in Science & Mathematics ➔ Mathematics
2 * 2 * 2 = 8
So the answer's 3.
2006-09-24 08:49:56 · answer #1 · answered by anonymous_dave 4 · 1⤊ 0⤋
2 to the power of 3
2006-09-24 15:50:30 · answer #2 · answered by Yonnnie 3 · 0⤊ 0⤋
I don't really understand your question, but 8 as a power of 2 is 2^8.
2^8 = 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 = 256.
(If you are asking something else, i.e. to what power of 2 is 8, then the answer is 2^3 = 8, so the power is 3.)
2006-09-24 19:01:02 · answer #3 · answered by Kemmy 6 · 0⤊ 0⤋
God knows. I failed math GCSE - but I found this -
Consider log2 8. We are asking ‘what is 8 expressed as a power of 2 ?’ We know that 8 = 23
and so log2 8 = 3.
What about log8 2 ? Now we are asking ‘what is 2 expressed as a power of 8 ?’ Now 23 = 8
and so 2 = 3 â8 or 81/3. So log8 2 =
1
3
.
We see again
log8 2 =
1
log2 8
2006-09-24 15:54:15 · answer #4 · answered by Madam Rosmerta 5 · 0⤊ 0⤋
Break it down by division. 8 divided by 2 equals 4. 4 divided by 2 equals 2; therefore 8 as a power of 2 is: (how many 2's were derived by the above method?)
2006-09-24 15:52:11 · answer #5 · answered by rocklady 2 · 0⤊ 0⤋
2^2*2
2006-09-24 17:24:53 · answer #6 · answered by Anonymous · 0⤊ 0⤋
think of a cube with width length and breadth of 2 units
the volume of the cube = width x length x breadth
= 2 x 2 x 2 cubic units
= 8 cubic units
hence, (2 units)^3 = 8 cubic units
therefore, 8 = 2 cubed(2^3)
2006-09-24 17:42:28 · answer #7 · answered by Anonymous · 0⤊ 0⤋
2 to the third power, or 2 cubed.
2006-09-24 16:01:25 · answer #8 · answered by Laura K 3 · 0⤊ 0⤋
To solve we have the equation:
8 = 2^x
take logarithms
log 8 = log(2^x)
hence log 8 = x*log2
so x = (log8)/(log2) = 3
2006-09-24 15:58:31 · answer #9 · answered by ? 7 · 0⤊ 0⤋
To the third power
2006-09-24 15:55:36 · answer #10 · answered by intqs 2 · 0⤊ 0⤋