Precal Ch 9 Discrete Math

20 Questions | Total Attempts: 97

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Precal Ch 9 Discrete Math

Ch 9 discrete mathematics quiz (9. 1 - 9. 4)


Questions and Answers
  • 1. 
    Count the number of ways that each procedure can be done. Line up 4 people (Mr. Han, Ms. Aguirre, Ms. Torres, and Mr. Birko) for a photograph.
  • 2. 
    Arrange five books (English, Pre Calculus, Physics, U.S. History, and Korean) on a bookshelf.
  • 3. 
    How many different answer keys are possible for a 10-question True-False Test?
  • 4. 
    How many different license plates consist of five symbols, either digits or letters?
  • 5. 
    Mr. Han gives 20 study questions, from which he will select 8 to be answered on the final exam.  How many ways can he select the questions?
  • 6. 
    The card game “bid Euchre” uses a pack of 24 cards, consisting of ace, king, queen, jack, 10, and 9 in each of the four suits (spades, hearts, diamonds, and clubs). In bid Euchre, a hand consists of 6 cards.  Find the probability of each event. A hand is all spades.
  • 7. 
    All six cards are from the same suit.
  • 8. 
      A hand includes all four aces.
  • 9. 
    There are two precalculus sections at Roosevelt High School.  There 12 girls and 8 boys in the 1st period, while there are 10 girls and 15 boys in the 3rd period.  If a precalculus student chosen at random happens to be a girl, what is the probability she is from the 1st period?
  • 10. 
  • 11. 
    Find the first 4 terms and the 20th term of the sequences.
  • 12. 
  • 13. 
  • 14. 
    Find the first 4 terms only.
  • 15. 
    In 15 – 18, the sequences are arithmetic or geometric.   Find a recursive formula for the nth term.     -5, -1, 3, 7, . . . 
  • 16. 
    1/8,-1/4,1/2,-1,…
  • 17. 
    Find an explicit formula for the nth term.   -5, -1, 3, 7, . . . 
  • 18. 
    1/8,-1/4,1/2,-1,…
  • 19. 
    Solve the equation algebraically. x = ?
  • 20.