A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

A key code must contain 4 numerals. There are 10 numerals available. Using these numerals, how many different key codes may be created?

  • This Question is Closed
  1. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    \(10*9*8*7\) multiply that

  2. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    5040 thank you

  3. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    your welcome \(\ddot\smile\)

  4. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    A fish tank at a pet store has 10 goldfish. In how many different ways can Brian choose 3 goldfish to buy? @Mehek14

  5. Mehek14
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    same as the other one \(10*9*8\)

  6. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    If you can use the numerals more than once you should use 10^4

  7. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.