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
Ksenya-84 [330]
3 years ago
10

A 3 letter password from the letters a b c and d the password cannot have the same letter repeated in it how many such passwords

are possible
Mathematics
1 answer:
iren2701 [21]3 years ago
3 0

Answer:

24\ passwords

Step-by-step explanation:

Total\ available\ characters=4(a,b,c,d)\\\\ We\ want\ to\ choose\ 3\ of\ them.\\Here\ order\ matters\ (for\ example\ abc\ and\ acb\ are\ two\ different\ passwords) \\Hence\ we\ have\ to\ take\ permutation\ to\ count\ total\ possibilities.\\\\Total\ number\ of\ passwords=^4P_3\\\\Total\ number\ of\ passwords=\frac{4!}{(4-3)!}\\\\Total\ number\ of\ passwords=\frac{4!}{1!}\\\\Total\ number\ of\ passwords=24

You might be interested in
A metal shipping container is being used to transport clothes overseas. It will have a volume of 640 cubic feet. If the length o
Lilit [14]

Answer:

C. 128ft

Step-by-step explanation:

it's C because whenever it says and you're supposed to multiply always remember that :) = (which means area ofc) you're finding the so you multiply 16x8 and the you get your answer (: ignore the 640 you just focus on the 16 and 8 ok? 16x8=128! :))

<em /><em> </em><em /><em /><em /><em /><em /><em /><em /><em> </em><em /><em /><em /><em /><em> </em><em /><em /><em> </em><em /><em /><em /><em /><em /><em /><em> </em><em /><em /><em /><em /><em /><em> </em><em /><em /><em> </em><em /><em /><em> </em><em /><em /><em /><em> </em><em /><em /><em /><em> </em><em /><em /><em> </em><em /><em /><em /><em /><em /><em> </em><em /><em /><em /><em /><em> </em><em /><em /><em /><em /><em /><em /><em /><em> </em><em /><em /><em> </em><em /><em /><em /><em /><em /><em> </em><em /><em /><em /><em /><em /><em /><em /><em /><em /><em> </em><em> </em><em>></em><em>:</em><em>(</em>

3 0
3 years ago
A rental company charges $8 per hour to rent a kayak plus a $12 rental fee. If Margerie spent $44, for how many hours did she re
DanielleElmas [232]
4 hours she spent .............:
3 0
2 years ago
Read 2 more answers
Which is an equation of the line that
Alex Ar [27]
Answer; D) y=-3x+13
4 0
3 years ago
400 quarts into a container that holds 4/7 of a quart. how many containers were used?
77julia77 [94]
700 container 
hope this helps

4 0
3 years ago
Please I need help with this!!!!!!
Bezzdna [24]

Answer:

Step-by-step explanation:

1) Step 4: Marc has converted radical form to exponent form

Step 5: He has evaluated the value of the radical

3)

x = \sqrt[3]{8}

Here, 3 is index and 8 is radicand.

Prime factorize 8 and for every 3 numbers we can take one number outside the radical

Solution:

x = \sqrt[3]{2*2*2}\\\\x = 2

4) No,my equation does not have an extraneous solution.

My solution, satisfies the equation

3 0
3 years ago
Other questions:
  • If dh = 4x – 17 and fh = x 13, find the value of x for which defg must be a parallelogram. 10 8 6 7
    14·1 answer
  • If a/x + 1 = c/x which is an expression for x terms in terms of c and a?
    6·1 answer
  • Cell phones can weigh as little as 2 ounces. How many pounds can the cell phone weigh?
    6·1 answer
  • Will mark brainliest if answered correctly!
    10·1 answer
  • Y + 2.13 = -9.74 I need help
    15·1 answer
  • Chris says that is halfway between 0.5 and 100%.<br> Is Chris correct? You must explain your answer
    11·1 answer
  • How you do fractions
    9·1 answer
  • Match the expression with its equivalent expression? 4(x+3)
    14·1 answer
  • Albert walks 4/5 of a mile in 5/12 of an hour. what was the average speed miles er hour?
    10·1 answer
  • 10. Use the data to determine the missing values in the five-number summary.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!