Newest questions posted by Fred
  1. world history

    What impact did the collapse of the Soviet Union have on the end of segregation in South Africa? a- The decline of the Soviet Union allowed for the United Nations to intervene in the segregation policies of the South African government. b-The decline of
  2. Maths

    In how many ways can 4 girls and 3 boys be arranged in a row so that the girls are always together? Answer: 576
  3. Maths

    A PIN consists of 6 numbers, with no repetition of any numbers allowed. How many different PINs are possible? I did 10 x 9 x 8 x 7 x 6 x 5 = 151 200, but the answers say 720. I dont understand why its 6 factirial. Any explanation would be great. Thanks
  4. Maths

    In how many ways can 8 people be divided into 2 groups of 3 and 5 people respectively? Thanks again to anyone who helps. Answer is 56
  5. Maths

    A group of 9 friends go into a nightclub and there is only a table for 3 and therefore the others will have to stand up. If the friends randomly assign who sits at the table, in how many ways can they be seated? These permutation and combination q's are


Newest responses posted by Fred
  1. Maths

    Ahh yes forgot about zero. Thanks heaps
  2. Science

  3. Chemistry

    Okay. PV = nRT ATM * 2.3L = n (0.08205)(282k) How do I do ā€œnā€?
  4. Chemistry

    Help please???
  5. chemistry