williamsantoinou4xtz williamsantoinou4xtz
  • 04-08-2017
  • Mathematics
contestada

Abdul is choosing a 3 letter password from the letters A,B,C,D, and E. The password cannot have the same letter repeated in it. How many such passwords are possible?

Respuesta :

Jefrafra
Jefrafra Jefrafra
  • 04-08-2017
There are 60 unique passwords. You can find this answer by multiplying 5*4*3 because each time you will have one less letter to choose from.
Answer Link
musiclover10045
musiclover10045 musiclover10045
  • 04-08-2017

there are 5 letters

1st letter can be any 5

2nd letter can be any 5 -1 = 4

3rd letter can be any 5 -2 = 3

5*4*3 = 60 different combinations

Answer Link

Otras preguntas

which type of energy is associated with random motion of atoms and molecules in a sample of air? 1.chemical energy 2. electrical energy 3.nuclear energy 4. th
'This life is more important than the next' - Discuss statement Include Christian views - Catholic and Church of England
which element can become stable by losing 1 electron
What process in animal cells required oxygen
Why can't plants catch a cold?
what was the basic Sumerian building material?
A basketball rolls of a 0.70 m high desk and strikes the floor 0.25 m away from the base of the desk? How fast was the ball rolling?
Prove the identity: cos(3x) + cos(x) = 2cos(2x)cos(x) I'm almost done with my homework, just got stuck on this one.
What does a journal written by frontier settlers most likely tell you about Manifest Destiny?
What role does carbon dioxide play in plant life processes