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help-10
b8386d7477ee4c2687c8cee3e0e5bfe9
357,677,060,472,307,700
TieSin
01/27/2022 12:33:12
.close
1
0
null
null
null
null
null
327
help-10
75bc382729c2476eb4ec2d13ccf12cc3
355,859,037,432,315,900
Michi
01/27/2022 13:35:56
Mrs ... gives a list of eight questions to the class out. In a query, she puts two of these questions to the student before. The student must answer one of these. Jonas only has time to prepare for one of the eight questions. Calculate the probability that he is asked a question for which he has prepared himself. I k...
https://cdn.discordapp.c…5155/unknown.png
unknown.png
1
0
null
null
null
null
null
327
help-10
75bc382729c2476eb4ec2d13ccf12cc3
265,853,506,664,136,700
ScapeProf
01/27/2022 13:40:39
Two ways to get the question he have prepared - either 1st question the one or 2nd question the one he prepared. Prob for 1st question to be the one is 1/8 * 7/7=1/8 and similar for 2nd question being the one, so 7/8 * 1/7=1/8. So prob is 1/8+1/8=1/4, which is the same as the answer they gave there
0
1
null
null
null
null
null
327
help-10
75bc382729c2476eb4ec2d13ccf12cc3
265,853,506,664,136,700
ScapeProf
01/27/2022 13:40:57
If you prefer a non combinatoric answer
0
1
null
null
null
null
null
327
help-10
75bc382729c2476eb4ec2d13ccf12cc3
265,853,506,664,136,700
ScapeProf
01/27/2022 13:41:45
But we need to choose the correct one, so 1 way to choose that and then choose one of the not correct, so 7 ways. In total there are {8 choose 2}=28
0
1
null
null
null
null
null
327
help-10
75bc382729c2476eb4ec2d13ccf12cc3
265,853,506,664,136,700
ScapeProf
01/27/2022 13:41:52
So 7/28=1/4
0
1
null
null
null
null
null
328
help-10
c044f9bc4d534bb4865ebdfea10e919d
355,859,037,432,315,900
Michi
01/27/2022 13:58:41
Thanks now
1
0
null
null
null
null
null
328
help-10
c044f9bc4d534bb4865ebdfea10e919d
355,859,037,432,315,900
Michi
01/27/2022 13:58:49
I understand it
1
0
null
null
null
null
null
328
help-10
c044f9bc4d534bb4865ebdfea10e919d
325,458,755,774,840,800
PhysMan
01/27/2022 14:00:53
I'm trying to solve the following Cauchy problem: $u_t+xtu_x=0,u(x,0)=\sin x$. I've found the general solution as $u=f(\frac{t^2}{2}-\ln{|x|}$, but when I try to solve for the boundary I run into problems.
0
1
null
null
null
null
null
328
help-10
c044f9bc4d534bb4865ebdfea10e919d
510,789,298,321,096,700
TeXit
01/27/2022 14:00:57
**PhysMan**
https://cdn.discordapp.c…755774840834.png
325458755774840834.png
0
1
null
null
null
null
null
328
help-10
c044f9bc4d534bb4865ebdfea10e919d
325,458,755,774,840,800
PhysMan
01/27/2022 14:07:51
Also curious if anyone knows of any symbolic math programs that can solve for general solutions of PDEs. It seems that Wolfram Alpha just gives the trivial solution.
0
1
null
null
null
null
null
329
help-10
d7b998694cc74af491ec8804bd8a96c7
411,298,824,154,251,260
davids
01/27/2022 15:17:50
https://cdn.discordapp.c…7700/unknown.png
unknown.png
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 15:53:09
Hi I am doing this numerical reasoning test. When answering this question I am getting 165,000 I get this answer by multiplying 750k by 22% but I don't think this is correct unless there is some red herring information which I doubt. Can anyone help?
https://cdn.discordapp.c…1284/unknown.png
unknown.png
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
200,013,547,491,688,450
a disappointing son
01/27/2022 15:53:35
> Cheating on tests and exams, as well as other forms of academic dishonesty, will result in an immediate ban.
0
1
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 15:53:47
it is a practice one
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 15:54:01
https://cdn.discordapp.c…7064/unknown.png
unknown.png
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 15:54:19
Just as evidence that I am not cheating on the actual one
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 15:54:37
https://cdn.discordapp.c…6809/unknown.png
unknown.png
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 15:55:19
Numeracy is not my strong point due to personal reasons growing up which is why I am asking if anyone can double check the answer that I got which is 165,000
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
200,013,547,491,688,450
a disappointing son
01/27/2022 15:56:45
understandable
0
1
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
200,013,547,491,688,450
a disappointing son
01/27/2022 15:57:01
the 165,000 would be the *entire* sales for beauty
0
1
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
200,013,547,491,688,450
a disappointing son
01/27/2022 15:57:06
they've only hit 29%
0
1
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 15:58:01
so would I do 100-29 = 71 then do 0.71*165000?
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
200,013,547,491,688,450
a disappointing son
01/27/2022 15:58:46
looks good to me 👍
0
1
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 15:59:40
Thanks! just one last question do I divide the computer issues by the total computers when doing this before multiplying it by 100%?
https://cdn.discordapp.c…6690/unknown.png
unknown.png
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
200,013,547,491,688,450
a disappointing son
01/27/2022 16:00:05
👍
0
1
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 16:00:10
so kind of like 280/5465*100
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 16:00:16
thank you again!
1
0
null
null
null
null
null
330
help-10
3cd345bdcb5847479117df7d6c0a324d
264,930,352,210,903,040
Frost
01/27/2022 16:00:29
.close
1
0
null
null
null
null
null
331
help-10
b51f7b5cb37c40119871f82f030c26fe
712,743,045,279,383,700
earracer
01/27/2022 16:07:12
there are four married couples at a party, how many ways can they sit around a circular table where the couples cannot sit next to each other? i know that the amount of ways they can sit around the table without restrictions is 5040, but how do i put it where the couples cannot sit next to each other when everyone in t...
1
0
null
null
null
null
null
332
help-10
26b41c1b8fb54eba8256b0f52be951d4
591,881,746,195,415,000
spaghetti
01/27/2022 20:58:10
can someone help me with this question
https://cdn.discordapp.c…874/IMG_1388.jpg
IMG_1388.jpg
1
0
null
null
null
null
null
332
help-10
26b41c1b8fb54eba8256b0f52be951d4
591,881,746,195,415,000
spaghetti
01/27/2022 20:58:27
I’m so confused on what I set x and y as and what the equation has to be
1
0
null
null
null
null
null
332
help-10
26b41c1b8fb54eba8256b0f52be951d4
591,881,746,195,415,000
spaghetti
01/27/2022 20:58:33
@Helpers
1
0
null
null
null
null
null
332
help-10
26b41c1b8fb54eba8256b0f52be951d4
200,013,547,491,688,450
a disappointing son
01/27/2022 21:03:05
https://cdn.discordapp.c…e592e6250a4d.png
37d5ecc56d0071ae46f2e592e6250a4d.png
0
1
null
null
null
null
null
332
help-10
26b41c1b8fb54eba8256b0f52be951d4
591,881,746,195,415,000
spaghetti
01/27/2022 21:13:56
.close
1
0
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
456,226,577,798,135,800
Deleted User
01/27/2022 22:04:49
Let n be an integer. Prove that either 4 | n^2, or there exists some integer k such that n^2= 4k+ 1. Is it valid to state for n = 1, 1^2 = 4k + 1 k = 0 Therefore an integer k exists?
1
0
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
329,749,386,315,956,200
Sneaky
01/27/2022 22:06:39
Yes
0
1
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
456,226,577,798,135,800
Deleted User
01/27/2022 22:06:58
like is that a complete proof?
1
0
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
329,749,386,315,956,200
Sneaky
01/27/2022 22:07:32
Its a valid proof that the statement is true for n=1, but not a proof that its true for all integers n(which is what you're asked to prove)
0
1
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
456,226,577,798,135,800
Deleted User
01/27/2022 22:08:41
how would i go about proving it's true for all integers? was able to get 4 | n^2 for n being even but not for n being odd.
1
0
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
329,749,386,315,956,200
Sneaky
01/27/2022 22:10:30
My league game is starting, I'll try help you after its done if noone else has/you ahvent figured it out by then. i can tell you to consider the cases where n is odd and where n is even in the meantime.
0
1
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
456,226,577,798,135,800
Deleted User
01/27/2022 22:10:40
like i think i got parts of the proof but not sure how to get it all together. like 4 | n^2 holds if n is even, but not odd. and n^2 = 4k + 1 for n being odd but not even.
1
0
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
456,226,577,798,135,800
Deleted User
01/27/2022 22:10:43
gotcha, thank you.
1
0
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
456,226,577,798,135,800
Deleted User
01/27/2022 22:25:24
i think i solved it. thank you for the help.
1
0
null
null
null
null
null
333
help-10
577ae1dc6fa344c48b35b9382609123b
329,749,386,315,956,200
Sneaky
01/27/2022 22:29:13
ok
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:14:01
https://cdn.discordapp.c…1360/unknown.png
unknown.png
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:19:09
@Helpers
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:19:42
Do you know midpoint theorem
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:19:52
yes
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:19:59
the formula right?
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:20:22
(x1+x2)/2, (y1+y2)/2
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:20:34
lava
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:20:39
hola
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:20:40
The line segment in a triangle joining the midpoint of two sides of the triangle is said to be parallel to its third side and is also half of the length of the third side.”
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:21:17
and The converse of the midpoint theorem states that ” if a line is drawn through the midpoint of one side of a triangle, and parallel to the other side, it bisects the third side”
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:21:33
didn't knew these
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:22:08
i was preparing for math olympiad but there was no solution to this problem
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:23:35
can u see that DE= BF=BC/2=16
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:23:58
yes
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:24:03
i can understand that
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:24:10
DM=1/2DE=8
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:25:03
how dm = 1/2?
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:25:10
is E the midpoint of AC?
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:25:27
DM = 1/2DE
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:25:36
which basically means DM is DE by a half
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:25:38
By converse of midpoint, yes
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:25:43
i see
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:26:08
i suppose we use the Thales theorem
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:26:20
oh
1
0
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
7548
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
false
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:26:23
got it
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:26:45
here
0
1
469,667,735,941,546,000
alephcomputer
6166
alephcomputer
false
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:26:49
this is how i would do this
0
1
750,275,575,574,167,600
lava
6479
lava
false
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:26:58
since AB = BC
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:27:04
and AB is 32
0
1
469,667,735,941,546,000
alephcomputer
6166
alephcomputer
false
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:27:08
then BC would be 32 also
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:27:18
you can say midpoint a special case of thales
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:27:30
use Thales theorem for DE // BC and EF // AB accordingly
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:27:35
yep
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:27:52
from what lava said here we can say that DE = 1/2BC and EF = 1/2AB
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:28:18
ok
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:29:12
DM = 4, MO =?
1
0
469,667,735,941,546,000
alephcomputer
6166
alephcomputer
false
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:29:21
1/2 X DM X MO
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:29:31
mo? = ?
1
0
750,275,575,574,167,600
lava
6479
lava
false
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:30:02
hm
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:30:04
mo = 1/3AB?
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:30:07
yes, we have to find MO
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:31:02
applying converse of midpoint in DEF, we get MO=1/2EF
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
469,667,735,941,546,000
alephcomputer
01/28/2022 00:31:26
since D and F are midpoints of AB and B respectively, we can derive that BD=BF so DEFB is a square
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:31:58
so MO = 8?
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
742,415,866,922,139,800
𝚂𝙰𝚃𝚆𝙰𝚃𝙾©
01/28/2022 00:32:10
area of dmo = 16?
1
0
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:35:24
no 32
0
1
null
null
null
null
null
334
help-10
837e12ecbdb74c31a7909aa99b948357
750,275,575,574,167,600
lava
01/28/2022 00:36:13
1/2\*8*8
0
1
null
null
null
null
null
335
help-10
5781eaee71324a4e9b78c3e1e943e668
373,980,725,721,956,350
DEOG
10/29/2021 09:08:59
a+b+c=0 also means that a^3 + b^3 + c^3 = 3abc ?
1
0
null
null
null
null
null
335
help-10
5781eaee71324a4e9b78c3e1e943e668
209,767,680,100,663,300
Kaisheng21
10/29/2021 09:10:56
no
0
1
null
null
null
null
null
335
help-10
5781eaee71324a4e9b78c3e1e943e668
209,767,680,100,663,300
Kaisheng21
10/29/2021 09:11:01
wait
0
1
null
null
null
null
null
335
help-10
5781eaee71324a4e9b78c3e1e943e668
209,767,680,100,663,300
Kaisheng21
10/29/2021 09:11:02
maybe
0
1
null
null
null
null
null
335
help-10
5781eaee71324a4e9b78c3e1e943e668
209,767,680,100,663,300
Kaisheng21
10/29/2021 09:11:14
no
0
1
null
null
null
null
null
335
help-10
5781eaee71324a4e9b78c3e1e943e668
507,116,799,284,740,100
EpicGuy4227
10/29/2021 09:11:16
expanding (a+b+c)^3 we get a bunch of terms so probably not
0
1
null
null
null
null
null
335
help-10
5781eaee71324a4e9b78c3e1e943e668
209,767,680,100,663,300
Kaisheng21
10/29/2021 09:11:21
because let a = 1, b = 0, c = -1
0
1
null
null
null
null
null
335
help-10
5781eaee71324a4e9b78c3e1e943e668
209,767,680,100,663,300
Kaisheng21
10/29/2021 09:11:28
then you get 1 + -1
0
1
null
null
null
null
null