1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marysya [2.9K]
3 years ago
12

in a five character password the first two characters must be digits and the last three characters must be letters if no charact

ers are allowed to repeat how many unique passwords are possible
Mathematics
1 answer:
Vilka [71]3 years ago
5 0

Answer:

1,404,000 unique passwords are possible.

Step-by-step explanation:

The order in which the letters and the digits are is important(AB is a different password than BA), which means that the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

In this question:

2 digits from a set of 10(there are 10 possible digits, 0-9).

3 characters from a set of 26. So

P_{10,2}P_{26,3} = \frac{10!}{8!} \times \frac{26!}{23!} = 10*9*26*25*24 = 1404000

1,404,000 unique passwords are possible.

You might be interested in
There are less than 200 apples in a box. It is known that 2,3,4,5, and 6 kids can share these apples evenly. How many apples can
bekas [8.4K]

Answer:

60/120/180

Step-by-step explanation:

Either of these would work because it must be an even number divisible by 2.

It must end in a zero : divisible by 5 but even.

It must be a multiple of 30 as 3 only goes into 10s at 30. And that takes care of the 6 too.

But 4 doesn't go into 30, so 60?….

Yes, 60 is divisible between 2, 3, 4, 5 and 6

But the question does not limit your answer to one solution.

I hope this helps! :)

8 0
3 years ago
As a means to obtain financial support from French towns, the Capetian Kings?
earnstyle [38]
D. Developed common law
6 0
3 years ago
Read 2 more answers
Can y’all help me on question 40?!
Anastaziya [24]

Answer:

t = 3c

Step-by-step explanation:

3 0
2 years ago
Jonah runs a bakery, and his most popular item is cinnamon raisin bread. He has two options to purchase raisins.
garri49 [273]

Answer:

C. $0.19/ounce

Step-by-step explanation:

We know that 16 ounces = 1 pound but we have 5 pounds,

So, we do 5 times 16.

We get 80 (ounces)  and we divided ounces by total cost ($15.25)

We get our answer:

$0.19/ounce

3 0
2 years ago
Read 2 more answers
Got some easy questions, to do. <br><br>Will give, Branliest.<br><br>:) ​
Ivanshal [37]

1.)3

2.)6

3.)9

4.)12

5.)18

6.)?

7.)?

8 0
2 years ago
Read 2 more answers
Other questions:
  • Please help mee!!! Arrange the following numbers from largest to smallest: 1.065, 0.39, 1.29
    5·1 answer
  • I need help please help
    10·2 answers
  • Plzz I beg someone to finish ALL of this :(. I’ve stayed up all night to do this but I couldn’t figure all of them out. Pls pls
    13·1 answer
  • If you see ##### in a cell, you should, A. make the row taller B. retype the number C. type in a different number D. make the co
    6·2 answers
  • Graph a line with a slope of 3 that goes through the point (1, 3).
    6·1 answer
  • PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. <br> IM GIVING 40 POINTS !! DONT SKIP :((.
    14·1 answer
  • Need answer to finish test
    14·1 answer
  • How many dollars does 3 bottles of water cost ?
    5·1 answer
  • Christian reads 1/4 of a book every 2/3 weeks how many books does Christain read per week​
    12·1 answer
  • Can somene please help me on my question
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!