Lines

In how many points will intersect 14 different lines, where no two are parallel?

Result

n =  91

Solution:

Solution in text n =







Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




See also our combinations calculator.

Next similar examples:

  1. Line
    skew_lines It is true that the lines that do not intersect are parallel?
  2. Trinity
    trojka How many different triads can be selected from the group 38 students?
  3. Chords
    chords How many 4-tones chords (chord = at the same time sounding different tones) is possible to play within 7 tones?
  4. Confectionery
    cukrovinky The village markets have 5 kinds of sweets, one weighs 31 grams. How many different ways a customer can buy 1.519 kg sweets.
  5. The confectionery
    ice_cream The confectionery sold 5 kinds of ice cream. In how many ways can I buy 3 kinds if order of ice creams does not matter?
  6. Examination
    examination The class is 21 students. How many ways can choose two to examination?
  7. Teams
    football_team How many ways can divide 16 players into two teams of 8 member?
  8. Blocks
    cubes3_1 There are 9 interactive basic building blocks of an organization. How many two-blocks combinations are there?
  9. Seats
    divadlo_2 Seats in the sport hall are organized so that each subsequent row has five more seats. First has 10 seats. How many seats are: a) in the eighth row b) in the eighteenth row
  10. Calculation of CN
    color_combinations Calculate: ?
  11. Sequence 2
    seq2 Write the first 5 members of an arithmetic sequence a11=-14, d=-1
  12. Sequence
    seq_1 Write the first 6 members of these sequence: a1 = 5 a2 = 7 an+2 = an+1 +2 an
  13. Theorem prove
    thales_1 We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
  14. Sequence
    a_sequence Write the first 7 members of an arithmetic sequence: a1=-3, d=6.
  15. Sequence 3
    75 Write the first 5 members of an arithmetic sequence: a4=-35, a11=-105.
  16. AP - simple
    sigma_1 Determine the first nine elements of sequence if a10 = -1 and d = 4
  17. Sequence
    sunflower Between numbers 1 and 53 insert n members of the arithmetic sequence that its sum is 702.