2nd class variations
From how many elements you can create 6972 variations of the second class?
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
- Variations 4/2
Determine the number of items when the count of variations of fourth class without repeating is 600 times larger than the count of variations of second class without repetition.
Determine the number of items when the count of variations of fourth class without repeating is 42 times larger than the count of variations of third class without repetition.
How many ways can select 4 fields on classic chess board with 64 fields, so that fields don't has the same color?
From the colors - red, blue, green, black and white, create all possible tricolors.
- Task of the year
Determine the number of integers from 1 to 106 with ending four digits 2006.
- Olympics metals
In how many ways can be win six athletes medal positions in the Olympics? Metal color matters.
In the Hockey World Cup play eight teams, determine how many ways can they win gold, silver and bronze medals.
In how many ways can be divided gold, silver and bronze medal among 21 contestant?
- Password dalibor
Kamila wants to change the password daliborZ by a) two consonants exchanged between themselves, b) changes one little vowel to such same great vowel c) makes this two changes. How many opportunities have a choice?
- Cars plates
How many different licence plates can country have, given that they use 3 letters followed by 3 digits?
- Area codes
How many 6 digit area codes are possible if the first number can't be zero?
- Theorem prove
We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
- PIN - codes
How many five-digit PIN - code can we create using the even numbers?
Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: ?
Determine the discriminant of the equation: ?
- Quadratic equation
Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.