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Mathematics 13 Online
OpenStudy (anonymous):

need help 12p9/12p8

OpenStudy (anonymous):

i have no idea what this even means

OpenStudy (shane_b):

Are you being asked to simplify:\[\frac{12p^9}{12p^8}\]

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

look at the common terms and cancel them.

OpenStudy (shane_b):

Ok, then just divided 12 by 12 to get 1...then p^9 by p^8 to get just p.

OpenStudy (anonymous):

okey but the answers are either 220 4 79833600 or 19958400

OpenStudy (shane_b):

You didn't post the full question then...we have no value for p so it could be anything.

OpenStudy (anonymous):

i know but that is the question

OpenStudy (shane_b):

If that's all there is then no one can help you solve an unsolvable question...there's not enough information provided.

OpenStudy (anonymous):

or maybe the expresson is 12^p(9)/ 12^p(8)

OpenStudy (shane_b):

Without knowing something about p, it can't be solved.

OpenStudy (shane_b):

It's not even an equation

OpenStudy (anonymous):

well wth lol

OpenStudy (anonymous):

some1 told me it means 12x11x10 ect till u get down to 9 numbers

OpenStudy (marigirl):

It looks like a Index Laws question. i look at it like this, hope it helps! (attached picture)

OpenStudy (shane_b):

We already did that @marigirl

OpenStudy (marigirl):

oh, sorry!

OpenStudy (anonymous):

i think i found it out 12P9 means 12x11x9x8x7x6x5x4x3

OpenStudy (shane_b):

Ok, it's a factorial notation then

OpenStudy (anonymous):

yeap. thank u all very much

OpenStudy (shane_b):

\[\frac{12*11*10*9*8*7*6*5*4}{12*11*10*9*8*7*6*5}=4\]

OpenStudy (anonymous):

It's permutations right

OpenStudy (shane_b):

Yea, all along I thought the p was just a variable

OpenStudy (anonymous):

same here lol

OpenStudy (anonymous):

Lmao

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