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C
chijioke
reacted to
The Highlander's post
in the thread
How many of the mixed sweets do you get for 10N?
with
Like
.
There is something very odd going on here. 🤔 Is it a rogue seller or just a very poorly thought up question? The logic is impeccable to...
Apr 16, 2024
S
Stardust1
replied to the thread
Permutations and Combinations
.
There are 2 ways to place person A - 2!. Then there would be 7 ways to place the other 7 people - 7!. So would it be 2! x 7! then?
Apr 16, 2024
C
chijioke
replied to the thread
How many of the mixed sweets do you get for 10N?
.
I understand everything you wrote until I came to this part below How did you arrive at this average? I thought you obtained this...
Apr 16, 2024
O
oksanaki
replied to the thread
How do I know if my post was not approved by the moderators??
.
When a post requires moderator approval, it means that the forum's moderators need to review and approve the post before it becomes...
Apr 16, 2024
Dr.Peterson
replied to the thread
Permutations and Combinations
.
Correct; we are permuting 8 items. You didn't say before that you thought you were wrong because you were given a supposedly correct...
Apr 16, 2024
S
Stardust1
replied to the thread
Permutations and Combinations
.
Hi, (a) would be 8! = 40320. However, I've tried solving for (b) by doing 1 x 7! or 2! x 7! or 2! x 6! but the answer is 30240. For (c)...
Apr 16, 2024
Dr.Peterson
replied to the thread
Permutations and Combinations
.
Please show us your work on (a), and some sort of attempt at (b) or (c), so we can see what sort of trouble you're having. That makes a...
Apr 16, 2024
Dr.Peterson
reacted to
BigBeachBanana's post
in the thread
Can it be natural?
with
Like
.
Consider 5 \equiv 1 \mod 4
Apr 16, 2024
S
Stardust1
posted the thread
Permutations and Combinations
in
Probability / Statistics
.
A minibus has 6 forward-facing and 2 backward-facing seats. If 8 people use the bus, in how many ways can they be seated: a) with no...
Apr 16, 2024
BigBeachBanana
replied to the thread
Can it be natural?
.
Consider 5 \equiv 1 \mod 4
Apr 16, 2024
G
GilgameshProject
replied to the thread
Can it be natural?
.
Oh, ok, I'm sorry, thanks for correcting, English isn't my first language. Well it doesn't really have any context, it's an exam problem...
Apr 16, 2024
Dr.Peterson
replied to the thread
Can it be natural?
.
What about it seems easy? Proving that something is impossible is not usually easy. I don't see a quick answer, but I don't know a lot...
Apr 16, 2024
G
GilgameshProject
replied to the thread
Can it be natural?
.
Yeah, I have to either prove that it can't be natural or give an example of such n so that the expression takes natural value. I don't...
Apr 16, 2024
Dr.Peterson
replied to the thread
Law of Sines problem seemingly without enough info.
.
There's enough data to construct a drawing, so there must be enough to calculate all the values: You have one side of triangle ACD, and...
Apr 16, 2024
K
khansaheb
replied to the thread
Law of Sines problem seemingly without enough info.
.
Please show us what you have tried and exactly where you are stuck. Please follow the rules of posting in this forum, as enunciated at...
Apr 16, 2024
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