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gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0Easiest problem ever, but I forgot how to do them, dw:1361117139126:dw Can someone show me step by step how to solve this or create a problem giving me an example? Thanks.!

muhammad9t5
 one year ago
Best ResponseYou've already chosen the best response.0\[1\frac{ 694 }{ 896 }\] do you mean?

muhammad9t5
 one year ago
Best ResponseYou've already chosen the best response.0then p4 do you mean its power or 4 is multiplied?

muhammad9t5
 one year ago
Best ResponseYou've already chosen the best response.0like p4 or \[p^4\]

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0I have no idea... It just says 6P4,

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0Noo, its not that, I'll take a screenshot

muhammad9t5
 one year ago
Best ResponseYou've already chosen the best response.0ok... i am waiting for screenshot.

muhammad9t5
 one year ago
Best ResponseYou've already chosen the best response.0this is Permutation.

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0I also have this problem that includes a exclamation mark, dw:1361117585779:dw Do you know what its for?

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0& whats permutation? O_O I have never ever heard of that

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1\(!\) means a factorial.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1\(n!= n(n1)(n2).......3.2.1\) when n is a whole number. like for example 5! = 5*4*3*2*1 = 120

muhammad9t5
 one year ago
Best ResponseYou've already chosen the best response.0answer is 1 it means that you need to expand 6 as 4 times and 8 as 6 times.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1before getting to permutation, you should know what a factorial ! is .

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0OH.! so I had something like 10! I would have to do 10*9*8*7*6*5*4*3*2*1= etc..?

muhammad9t5
 one year ago
Best ResponseYou've already chosen the best response.06P4= 6*5*4*3 and 8P6= 8*7*6*5*4*3

muhammad9t5
 one year ago
Best ResponseYou've already chosen the best response.0yes you are correct.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1do you want to know how to get that^ ?

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0I feel like I've done this stuff in 8th grade but had forgotten how to do some of this. These questions are for my precal class & I found it odd that I had a probability question in there

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1\(\huge ^nP_r = \dfrac{n!}{(nr)!}\)

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0So basically I had to do the factorial (!) to the 6P & 8P?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1\(\huge ^nP_r = \dfrac{n!}{(nr)!} \\\huge ^6P_4 = \dfrac{6!}{(2)!} \\ \huge 8P_6 = \dfrac{8!}{(2)!}\)

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0Everything on the left side of the = is confusing to me

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1in the formula of nPr ? its just a formula, so for 6P4, i plugged in n=6 and r=4 in the standard formula.

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0How would you know which ones to plug in? Because in one you have 6P4 & in the next 8P6, I don't get how you go to that?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1n is before P , r is after P . in 6P4 , 6 is before P (so, n=6) and 4 is after P (so r=4) does this makes sense ?

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0Ah, it does now.! :) Thanks you guys both for explaining this to me.!

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1Thank me when you get to correct answer.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1i meant to ask you, whether you could now figure out the answer of that question...

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0I do the factorial, 8*7*6*5*4*3*2*1, I thought?

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0& then divide my answer by 2?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1i never said you are wrong. its just not the final answer.

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0Then I do the same with the 6

hartnn
 one year ago
Best ResponseYou've already chosen the best response.16P4 = 6*5*4*3 8P2= 8*7*6*5*4*3 Question asks, 1 6P4/8P2 = 1 6*5 / 8*7*6*5 = 1 1/(8*7) ok ?

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0Ah, I wasnt paying attention to the 1,

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0Would I have to subtract the 1 from the 6 & start factoring 5?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1no... first division operation is performed, so 6*5*4*3 will get cancelled from numerator and denominator, and what remains is just 1 1/(8*7) which i've already shown.

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1ok, clear till this : 6P4 = 6*5*4*3 8P2= 8*7*6*5*4*3

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1now divide them 6P4/8P2 =.... ?

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0I got 0.0178 etc... Thats not right..

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0I got 360 from 6*5*4*3 & 20160 from the factorial of 8.

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0How would I keep it in fractions?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1you can also cancel out like this : dw:1361120576575:dw got that ?

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0Ah, got it.! I wasnt thinking about canceling out

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1ask if any more doubts.

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0What happened to the 4 & 2?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1i just realized i mistyped 8P6 (and have written 8P2 instead) 4 and 2 where ?

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0The 4 after the P and the 2 after the other P

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1oh, we used the formula, right ? 64 = 2, so 2! in the denominator 86= 2, so 2! in the denominator

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.01/56 wasnt correct, could it be 55/56 by any chance?

hartnn
 one year ago
Best ResponseYou've already chosen the best response.1?? you forgot '1...' again ? 1 1/(7*8)= 11/56=(561)/56 = 55/56

gjhfdfg
 one year ago
Best ResponseYou've already chosen the best response.0*face palm* Thank you.
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