Question
A 4-character password uses the letters of the alphabet. Each letter can be used more than once, but the letterI is not used at all. How many different passwords are possible?$\mathbf{A} 100$$\mathbf{B} 13,800$C $303,600$$\mathbf{D} 390,625$
Step 1
This means that for each character in the password, there are 25 possible letters we could use. Show more…
Show all steps
Your feedback will help us improve your experience
Sarah Wharton and 84 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A computer password consists of four characters. The characters can be one of the 26 letters of the alphabet. Each character may be used more than once. How many different passwords are possible?
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD