what is 2ˉ³ and how is it worked out?
回答 (6)
2009-10-18 3:45 pm
✔ 最佳答案
2^-3=1/2^3
=1/8 answer//
2009-10-18 10:43 pm
Since the power is negative, we put it down on the fraction:
= 1 / 2^(3).
2^3 is 8. Thus the answer is 1 / 8
= 1 / 2^(3).
2^3 is 8. Thus the answer is 1 / 8
2009-10-18 10:42 pm
2^3 = 2*2*2 = 8
2^2 = 2*2 = 4
2^1 = 2
2^0 = 2/2 = 1
2^-1 = 1/2
2^-2 = 1/2^2 = 1/4
2^-3 = 1/2^2^2 = 1/8
2^2 = 2*2 = 4
2^1 = 2
2^0 = 2/2 = 1
2^-1 = 1/2
2^-2 = 1/2^2 = 1/4
2^-3 = 1/2^2^2 = 1/8
2009-10-18 11:04 pm
2^-3
= 1/(2^3)
= 1/8
= 1/(2^3)
= 1/8
2009-10-18 10:56 pm
Since the exponent is (-3) then the answer is in a fraction...so your problem would look like this
1
---
2˳
which is also 1/2˳
which makes your answer:
1
---
2(2)(2)
which EQUALS (=)
1
---
8
*So your answer is 1/8!*
Anytime the exponent is a negative just remember you need to make it a FRACTION so put 1 over your answer...**Like ABOVE ^^^^ ** Hope you get it!
Hope I helped!!
Pick me as best answer! :)
1
---
2˳
which is also 1/2˳
which makes your answer:
1
---
2(2)(2)
which EQUALS (=)
1
---
8
*So your answer is 1/8!*
Anytime the exponent is a negative just remember you need to make it a FRACTION so put 1 over your answer...**Like ABOVE ^^^^ ** Hope you get it!
Hope I helped!!
Pick me as best answer! :)
參考: My Math Class
2009-10-18 10:45 pm
keep in mind
A^-n=1/A^n
so
1/2^3=1/2*2*2
1/8
A^-n=1/A^n
so
1/2^3=1/2*2*2
1/8
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