1. How many 5-digit license plate numbers can we generate from the numbers, 0, 1, 2, 3, and 4 if it cannot start with 0.

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Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Back Check your Understanding I. answer the following.

1. How many 5-digit license plate numbers can we generate from the numbers, 0, 1, 2, 3, and 4 if it cannot start with 0.

2. A social media account requires a 6-character password. Passwords should only contain numbers from 1 to 9 and capital letters A to E. How many different passwords can you generate

 a. if the characters should not repeat?

b. if the characters repeat?

c. if the first 3 characters are numbers and the last 3 characters are letters, which are all distinct?

3. Which of the illustrates a permutation? A. Selecting a set of JS Prom committee consisting of 8 members from 20 people. B. Selecting a set of JS Prom committee consisting of a chairman, vice chairman, and promotion head from 20 people.

Check your Understanding
I. Answer the following.
1. How many 5-digit license plate numbers can we generate from the numbers, 0, 1, 2, 3, and 4 if it cannot
start with 0.
2. A social media account requires a 6-character password. Passwords should only contain numbers from 1 to
9 and capital letters A to E. How many different passwords can you generate
a. if the characters should not repeat?
b. if the characters repeat?
c. if the first 3 characters are numbers and the last 3 characters are letters, which are all distinct?
3. Which of the illustrates a permutation?
A. Selecting a set of JS Prom committee consisting of 8 members from 20 people.
B. Selecting a set of JS Prom committee consisting of a chairman, vice chairman, and promotion head from
20 people.
Transcribed Image Text:Check your Understanding I. Answer the following. 1. How many 5-digit license plate numbers can we generate from the numbers, 0, 1, 2, 3, and 4 if it cannot start with 0. 2. A social media account requires a 6-character password. Passwords should only contain numbers from 1 to 9 and capital letters A to E. How many different passwords can you generate a. if the characters should not repeat? b. if the characters repeat? c. if the first 3 characters are numbers and the last 3 characters are letters, which are all distinct? 3. Which of the illustrates a permutation? A. Selecting a set of JS Prom committee consisting of 8 members from 20 people. B. Selecting a set of JS Prom committee consisting of a chairman, vice chairman, and promotion head from 20 people.
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