Mathematics
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OpenStudy (anonymous):
HELP PLZZ!!! FOR MEDAL + FAN
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OpenStudy (anonymous):
\[81 \to the power of \frac{ 1 }{ 3 }\]
OpenStudy (bibby):
You can rewrite fractional exponents as roots. What is the cube root of 81, \(\large \sqrt[3]{81}\)?
OpenStudy (anonymous):
81^1/3 is the same thing as 81 divided by 3.
OpenStudy (anonymous):
my answer choices are
8/3
2.7
2
OpenStudy (bibby):
Flawless @AnswerMyQuestions
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OpenStudy (anonymous):
help plz
OpenStudy (anonymous):
So you only have 3 choices?
OpenStudy (anonymous):
yep
OpenStudy (anonymous):
Wait.
OpenStudy (anonymous):
1/3 = 0.33333333333, and 81^0.33333333333 = 4.32674871086.
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OpenStudy (anonymous):
OpenStudy (anonymous):
so then whts the answer
OpenStudy (anonymous):
OH, IT'S 8^1/3!
OpenStudy (anonymous):
lol yes
OpenStudy (anonymous):
ooooooo i sai 81 crap srry
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OpenStudy (anonymous):
1/3 = 0.33333333333, and 8^0.33333333333 = about 2.
OpenStudy (anonymous):
can u help me with one more plzzz
OpenStudy (anonymous):
Sure.
OpenStudy (anonymous):
OpenStudy (anonymous):
heres the question
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OpenStudy (anonymous):
@AnswerMyQuestions
OpenStudy (anonymous):
Do you know what 1/2 is as a decimal?
OpenStudy (anonymous):
.5
OpenStudy (anonymous):
Ok, so do you know what 81^0.5 is?
OpenStudy (anonymous):
uhhh
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OpenStudy (bibby):
\(\sqrt 81\)
OpenStudy (anonymous):
Yeah, if a number has a power of 0.5, or 1/2, you find the square root of that number.
OpenStudy (anonymous):
9
OpenStudy (anonymous):
Yes!
OpenStudy (anonymous):
tanxs
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OpenStudy (anonymous):
Np.