Mathematics
19 Online
OpenStudy (anonymous):
please tell me where i went wrong:
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OpenStudy (anonymous):
\[9^{-3}9^{\frac{ -3 }{ 2}}\]
\[\frac{ 1 }{ 9^{3} } \times \frac{ 1 }{ 9^{\frac{ 3 }{ 2}}}\]
OpenStudy (anonymous):
okay so far?
OpenStudy (anonymous):
@nickhouraney
OpenStudy (anonymous):
oops got distracted with the other problem lol
OpenStudy (anonymous):
lol its ok, you can finish that first :)
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OpenStudy (anonymous):
im having trouble seeing this is it 9^-3
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
i believe you are correct
OpenStudy (anonymous):
@lgbasallote ?
OpenStudy (lgbasallote):
you guys carry on. im just watching
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OpenStudy (anonymous):
no watching lol
OpenStudy (anonymous):
okay but if we simplify further:
\[\frac{ 1 }{ 9^{\frac{ 9 }{ 2 }} }\]?
my book's answer is \[\frac{ 1 }{ 3^{9} }\]
OpenStudy (lgbasallote):
watching is fun. makes people get nervous >:))
OpenStudy (anonymous):
lol
OpenStudy (anonymous):
thats the answer!! D:
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OpenStudy (anonymous):
please anyone?
OpenStudy (anonymous):
workin on it...
OpenStudy (anonymous):
If bases are same then can't we add the powers ??
OpenStudy (anonymous):
\[\large x^{-a} \times x^{-b} \implies x^{-a - b}\]
OpenStudy (anonymous):
well i got the answer but it appears i did it a little different
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OpenStudy (anonymous):
thats what i did.. added the powers
OpenStudy (anonymous):
@nickhouraney how did you do it?
OpenStudy (lgbasallote):
you forgot to change to common denominators
OpenStudy (lgbasallote):
darn @waterineyes you were supposed to only watch and pressure @nickhouraney :p
OpenStudy (anonymous):
ya i was getting too nervous lol
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OpenStudy (anonymous):
Sorry @lgbasallote
OpenStudy (anonymous):
Leave one comment here @ajprincess
OpenStudy (anonymous):
okay, so change denominators..
OpenStudy (anonymous):
how i did it was simplify it so i got 1/729 * 1/27
OpenStudy (anonymous):
@ajprincess write one comment here..
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OpenStudy (anonymous):
but i won't have a calculator for such small numbers..
OpenStudy (anonymous):
@nickhouraney don't worry whole solution is coming right now..
OpenStudy (angela210793):
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