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1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:50:44
write out the n+1 case
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:50:49
and show that it's true using your hypothesis
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:51:10
how ?
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:52:42
on the left hand side, wherever you see an `n`, plug in `n+1`. then expand and use your hypothesis to show that it's equal to the right hand side with `n+1` replacing `n`
https://cdn.discordapp.c…_12.52.03_PM.png
Screen_Shot_2022-03-30_at_12.52.03_PM.png
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:53:51
i think i already did it
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:53:59
induction step is in the picture
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:54:20
alright then you're done?
0
1
869,607,753,528,791,000
Pointy
5427
Pointy
false
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:54:50
i dont know how to move further from last line of induction step
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:55:11
why do you need to move further when you've already proven the n+1 case?
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:55:38
im not sure if its proven correctly
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:56:00
what are you proving?
0
1
392,341,051,794,391,040
Navix
0001
nvx
false
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:56:05
show the original question
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:56:18
the identity you posted above
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:56:49
my original question was only the left hand side, i calculated right hand side
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:57:01
i need to show that its true
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:57:44
the original problem
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:57:48
not your handwriting
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:58:48
https://cdn.discordapp.c…_at_10.24.40.png
Screenshot_2022-03-27_at_10.24.40.png
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:58:56
there are no instructions
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:59:00
show the whole problem
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 15:59:07
its not in english
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 15:59:35
how'd you come up with this then?
https://cdn.discordapp.c…_12.59.29_PM.png
Screen_Shot_2022-03-30_at_12.59.29_PM.png
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 16:01:23
https://cdn.discordapp.c…30_200028805.jpg
IMG_20220330_200028805.jpg
1
0
261,933,205,387,477,000
riemann
2529
riemann
false
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 16:04:09
i think that's enough of a proof? why do you need induction?
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 16:04:50
im required...idk, its weird
1
0
261,933,205,387,477,000
riemann
2529
riemann
false
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 16:06:51
Write out $\sum_{i=k}^{n+1} i \binom{i}{k}$ and use your inductive hypothesis. Then show that it's equal to $(k+1)\binom{(n+1)+2}{k+2} - \binom{(n+1)+1}{k+1}$
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
510,789,298,321,096,700
TeXit
03/30/2022 16:06:55
**riemann**
https://cdn.discordapp.c…205387477002.png
261933205387477002.png
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 16:08:09
do i just need to factor the RHS ?
1
0
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 16:08:21
maybe.
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
261,933,205,387,477,000
riemann
03/30/2022 16:08:33
you should just try different things
0
1
null
null
null
null
null
1,586
help-10
f6d6d2166e6846d3b6b7bf1b6109691e
692,635,975,678,951,400
Michal
03/30/2022 16:08:54
and the last line of inductive step is ok ?
1
0
null
null
null
null
null
1,587
help-10
cf342bca196a4808b6fa07481a766356
820,557,285,100,748,800
kkyoyrn
03/30/2022 16:54:09
https://cdn.discordapp.c…440/IMG_3552.jpg
IMG_3552.jpg
1
0
null
null
null
null
null
1,588
help-10
b596fa7cd23f4c2a88a021be6525f623
220,517,274,845,577,200
ramonov
03/30/2022 20:00:25
recall basics for combining fractions through addition
1
0
null
null
null
null
null
1,588
help-10
b596fa7cd23f4c2a88a021be6525f623
220,517,274,845,577,200
ramonov
03/30/2022 20:07:43
not quite
1
0
null
null
null
null
null
1,588
help-10
b596fa7cd23f4c2a88a021be6525f623
220,517,274,845,577,200
ramonov
03/30/2022 20:08:01
double check your denominator of your first term
1
0
null
null
null
null
null
1,588
help-10
b596fa7cd23f4c2a88a021be6525f623
220,517,274,845,577,200
ramonov
03/30/2022 20:09:12
apply exponent laws to simplify the numerator
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:16:00
how do you solve this using binomial probability? A shipment of thirteen smartphones contains six with cracked screens. If sold in a random order, what is the probability that exactly two of the first five sold have cracked screens?
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:34:05
i think that you have to do (5c2)(6/13)^2(7/13)^3
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:34:15
which evaluates to 28.51%
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:34:25
but the answer key says 40.793%
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:34:29
that makes no sense
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:42:14
@Helpers 🙏 u dont gotta explain anything to me, just lmk if the answer key is wrong or if im wrong
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
551,269,104,800,104,450
EndTimes
03/30/2022 20:47:57
I think you also need a 13 c 5
0
1
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
551,269,104,800,104,450
EndTimes
03/30/2022 20:48:21
,w (13 choose 5)(5 choose 2)(6/13)^2(7/13)^3
0
1
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
551,269,104,800,104,450
EndTimes
03/30/2022 20:48:38
,w (13 choose 5)(5 choose 2)(6/13)^2(7/13)^3
0
1
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:49:14
but that ggives
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:49:15
linke
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:49:19
like*
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
551,269,104,800,104,450
EndTimes
03/30/2022 20:49:22
No nvm
0
1
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:49:25
42801%
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
551,269,104,800,104,450
EndTimes
03/30/2022 20:49:29
That gives you a crazy big number lmao
0
1
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:49:34
ye lol
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 20:50:07
is the answer key wrong then?
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
551,269,104,800,104,450
EndTimes
03/30/2022 20:51:45
Yeah I mean what you have looks correct
0
1
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 21:07:14
alr thanks then
1
0
null
null
null
null
null
1,589
help-10
54dd0ef06ead43d09ce93f47304a799b
501,626,645,422,014,460
brxwn
03/30/2022 21:07:17
.close
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:13:00
https://cdn.discordapp.c…5EC6382B8385.jpg
07E2D760-9AFD-475F-8D00-5EC6382B8385.jpg
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:14:30
Hey was wondering if I could get some help. I just need help creating an algebra equation
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:19:44
The mean is 18. I just need to prove with Σfx/Σf
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:27:19
Actually I think the equation is (80 + 160 + 𝑥) / ( 8 + 8 + y) = 18 𝑥 = 30 x y
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:27:31
@Helpers
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:30:21
I just need help solving that
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:38:05
#help-10|feni
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:38:28
@Helpers
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
334,482,942,506,041,340
Zybikron
03/30/2022 21:42:21
what is x?
0
1
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:45:24
Sorry, x = y x 30
1
0
551,269,104,800,104,450
EndTimes
8053
EndTimes
false
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:45:32
Y is the box
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:46:16
Need to solve for y and then we can get x.
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
334,482,942,506,041,340
Zybikron
03/30/2022 21:47:37
So you really have (240+30y)/(16+y) = 18
0
1
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:48:10
Yes, I’ve written that. I just need help solving it
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
334,482,942,506,041,340
Zybikron
03/30/2022 21:49:30
multiply by 16+y
0
1
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:51:45
18 multiplied by 16+y?
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
334,482,942,506,041,340
Zybikron
03/30/2022 21:52:56
everything.
0
1
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
334,482,942,506,041,340
Zybikron
03/30/2022 21:53:01
that's how you get rid of fractions
0
1
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 21:56:37
(240 + x) would be 3840 + xy??
1
0
null
null
null
null
null
1,590
help-10
908c84a2bfbf404998cc7043db88a50c
605,348,389,760,008,200
James_27
03/30/2022 22:59:22
.close
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 06:45:01
does anyone know how to solve this?
https://cdn.discordapp.c…9066/unknown.png
unknown.png
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:00:52
@ain't it
0
1
null
null
null
null
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1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:01:00
What do you know about the slopes of parallel lines?
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 07:01:11
tangent =1
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:01:29
What do you mean by that?
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:01:34
Be precise in what you say
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 07:02:13
tangent = 1 when it is parellel to the line y=x
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:02:22
Not the tangent
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:02:25
The slope of the tangent
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 07:02:30
Ohh
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:02:48
Okay, so the tangent is of the form y = x + c
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:02:59
We need a point to plug in to find c
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:03:14
Find the point where this is the tangent line
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:03:19
Then plug in that point
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 07:07:13
ok
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:07:32
Try and show what you got if you want to
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 07:08:10
ok
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 07:12:48
is it like this
https://cdn.discordapp.c…11111_201217.jpg
20211111_201217.jpg
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:13:29
Everything except the last line is good
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 07:14:36
but the answer is y=x+3/4
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:15:06
Yes
0
1
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
738,650,399,359,238,100
Lunasong
11/11/2021 07:15:12
Not y = 9/4 x
0
1
249,469,789,578,330,140
ain't it
4426
ain't it
false
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
249,469,789,578,330,140
ain't it
11/11/2021 07:17:14
ohh
1
0
null
null
null
null
null
1,591
help-10
5d2024e3490e43a89a5041c69de2f3a9
456,226,577,798,135,800
Deleted User
11/11/2021 07:48:05
et
0
1
null
null
null
null
null