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
32 is the product of 2 and Rhonda age
Flura [38]
Rhonda's age is R
2R=32
Divide both sides by 2:
R=16

Hope this helps :)
4 0
2 years ago
ANSWER THIS FAST PLS NO PHOTOS THOSE BLOCKED
Alexxx [7]
The answer is approximately 8.1
4 0
3 years ago
Read 2 more answers
Is this the correct answer
enot [183]

Answer:

It should be correct.

8 0
3 years ago
Could someone Help pleasee ??!
malfutka [58]

Answer:

sorry if im wrong

Step-by-step explanation:

no

no

yes

yes

8 0
2 years ago
1/5z -5/6 = -4/5z -1/3
sveta [45]

Answer:

z = 15/30 = 3/6

Step-by-step explanation:

1/5z - 5/6 = - 4/5z - 1/3

1/5z + 4/5z = - 1/3 + 5/6

5/5z = - 2/6 + 5/6

5/5z = 3/6

z = 3/6 / 5/5

z = 3/6 * 5/5

z = 15/30

6 0
3 years ago
Other questions:
  • Can some one please help meee with a-c
    12·1 answer
  • Which graph represents the inequality x ≤ –2 or x ≥ 0?
    13·2 answers
  • The sum of two numbers is 105 if the larger number in 13 more than the smaller number
    5·1 answer
  • What is a scatter plot?<br> I somewhat know the answer, but I just need to know everything about it
    5·1 answer
  • Rectangle qrst is shown. angle qrt is congruent to angle str, and angle str is complementary to angle qtr. which statement is tr
    10·2 answers
  • A certain coin is a circle with diameter 18 mm. What is the exact area of either face of the coin in term of
    15·1 answer
  • How would you change 18/7 into a mix number?
    7·1 answer
  • Solve the equation. If necessary,round your answer to the nearest tenth x2=108 a)10,4,-10.4
    12·2 answers
  • PLEASE HELP ME FIND THE y ASAP THANK YOUUU​
    9·1 answer
  • What are the difference and similarities between a quadratic function and its transformation?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!