Math121 Discussion - 8th week solutions

Math121 Discussion - 8th week solutions - MATH 121...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
MATH 121 DISCUSSION WEEK 8 SOLUTIONS 1) 5 × 4 × 3 × 6 × 6 × 6 = 12,960 possible floral arrangements 2) P(5, 5) = 5! 0! = 5! = 120 possible ways to stand in line 3) P(6, 2) = 6! 4! = 6 × 5 = 30 possible ways to pick 1st and 2nd chair 4) P(10, 4) = 10! 6! = 10 × 9 × 8 × 7 = 5,040 possible ways to allocate prizes 5) 8! 3!3! = 1,120 possible arrangements 6) 6! 3!2! = 60 possible arrangements 7) C(8, 4) = 8 4!4! = 70 types of fruit salad 8) C(20, 8) = 20! 12!8! = 125,970 possible boards of directors 9) P(40, 3) = 40! 37! = 59,280 possible locker combinations 10) C(10, 3) = 10! 7!3! = 120 possible committees 11) 10! 2!2!3!3! = 25,200 possible arrangements 12) 36 × 36 × 26 × 26 × 10 × 10 × 10 = 36 2 × 26 2 × 10 3 = 876,096,000 possible passcodes 13) 26 × 25 × 24 × 10 × 9 × 8 = 11,232,000 possible passcodes 14) C(20, 5) = 20! 15!5! = 15,504 possible combinations 15) 11! 4!4!2! = 34,650 possible arrangements
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern