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0/0 seems invalid to me . 0 can't be the denumerator .that's the rule.
Could this help?
To Jane question
I haven't learn Fermat's little theorem thought , there is way to do it
Is group helpful on this one?
Let's just say removing 4 sticks.
Yah , it comes from mutiplication law of mod
This one is easier
Skiing: 0.40
Skating: 0.55
Racquet sports: 0.35
These are not pure Skiing , skating and Racquet? OH , Nevermind.then,
thanks Jane.
I got the same answer as you did on the first one
the second one , however I got 13/18
Four player throw dices, the result can be listed
_ _ _ _ (each blank can be filled in with 1,2,3,4,5,6)
Let's consider the counter situation
the first blank can take value from 1 to 6 , ( choose 1 from 6)
Since the second blank must be different ,there only 5 choice ( choose 1 from 5)
So on...
and the number of arrangement that four players roll different number is 6x5x4x3
the probability of four players roll different number will be (6x5x4x3)/(6x6x6x6)
then , at least two ppl roll the same number will be 1- (6x5x4x3)/(6x6x6x6)
Look at the climate change in China , Very convincing example of Global warming.
The longest Ive learned is "electroencephalogram"
The only clue I have is
Since A,B,C,D are distinct , and primes can't be divides by 2, or 5.
A,B,C,D={1,3,7,9},A+B+C+D=20
S=(2A+2B)1000+(A+2D+C)100+(A+2D+C)10+(A+B+C+D)=2000(A+B)+(A+2D+C)110+20
If the density of a matter is higher than it's entourage , there will be pressure , making it have the tendency of distributing its matter evenly . If a ballon placed in a void , I think it will explode.. And the universe's expand is pretty much the same..I guess.
but I think space wont just be a void ? My point is maybe the speed of the departing planets isnt enough represent the speed of the universe.
I thought it's very attractive with those mysterious number and alien things , but turned out that wasnt the point ..disappointed.
Consider this , A quantity of water placed in a dam , and there are some solids objects floating a the in water(in not on) , when the dam breaks , the displacement of water in certain time is greater than those of the objects. Maybe the universe structure is like darkmatter as water and planets like the object floating in it.
Luca is right.
If the universe is expanding, what happens when you get to the edge of it? And i dont see how it can be both infinite and expanding - because if it was expanding, there must be and edge that is expanding, but if it was infinite then there would be universe already beyond that edge. Does anyone understand what i mean?
Got a simply answer , the universe is infinite because it's expanding. Expanding
infinite.But I have no idea on the second one.
U can use the formula
I got a very elementary method .
My situation is kinda different , I've been in USA for 5 month by now, I have to prepare for SAT .
I really love math thought I am not very good at it.
This seems kinda oof topic , let's get back to it
Haha , I am 18~
Maybe the word end has extra abstract concept when applying to the universe.
I can give an example of inifinite and expanding , like the interval (1,2) , you can never reach the end of it , thought you are moving toward 2 , but the interval can expand to (0 ,3) .... haha~
In the void of death
Hollow outstrips conciousness
All become surreal.