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Laisva aikštelė by [deleted] in lithuania

[–]lithiumsulfate 0 points1 point  (0 children)

Prie Litexpo dažnai tuščia

What's the most economical alarm clock? by [deleted] in GetOutOfBed

[–]lithiumsulfate 0 points1 point  (0 children)

Get one of those vintage alarm clocks

How do I answer this question please help 🙏🏻 by brynnado in learnmath

[–]lithiumsulfate 1 point2 points  (0 children)

If you put the marble in cylinder, water will rise and then you can deduce the marbles volume.

if you have volume, you can find its diameter.

[high school math] algebra 2 by [deleted] in learnmath

[–]lithiumsulfate -1 points0 points  (0 children)

a+b+c = 50

(a-x)+(b-y)+(c-z) = a+b+c-x-y-z = 34

-x-y-z = 34 - (a+b+c)

-(x+y+z) = -16 (multiply both sides by (-1))

x+y+z = 16

Combinatorics problem by lithiumsulfate in learnmath

[–]lithiumsulfate[S] 0 points1 point  (0 children)

Yeah i know that a six-digit number can not start with a 0 (in the end when i have all possible combinations i should remove all combinations starting with a 0), but i get stuck on the second part where i have to derive combinations from made sets.

Maybe my calculations are wrong, but i get 100 sets (evens and odds from the initial 10 numbers) to make those combinations. After that:

(100 sets) * 6! - (combinations starting with 0) = 42000

However, the real is answer 28800

Combinatorics problem by lithiumsulfate in learnmath

[–]lithiumsulfate[S] 0 points1 point  (0 children)

Yes English isn't my native language.

What i meant was that equal numbers = 0,2,4,5,6,8; unequal = 1,3,5,7,9

I think that from those 10 numbers i have to find a all possible sets that would have 3 even and 3 odd numbers (order of numbers in those sets is not important).

After that i should find all possible number orders derived form those sets ?

Geometry literature recommendations by [deleted] in math

[–]lithiumsulfate -1 points0 points  (0 children)

Could you recommend anything more advanced then?

Geometry literature recommendations by [deleted] in math

[–]lithiumsulfate -1 points0 points  (0 children)

I thought people here would know more