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
Elis [28]
3 years ago
5

How many 3 letter codes are possible using a-j without repeats?

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
5 0
There are 10 letters in the set {a, b, c, d, e, f, g, h, i, j} which is the pool of letters to choose from when making these three letter codes.

We have 10 choices for slot 1
Then 9 choices for slot 2. This is because we can't reuse the choice for slot 1
Then 8 choices for slot 3

Overall, there are 10*9*8 = 90*8 = 720 different permutations

Answer: 720

Note: you can use the nPr permutation formula with n = 10 and r = 3 to get the same answer
You might be interested in
40 POINTS! Thank you so much if you answer!
daser333 [38]

Answer:

o

Step-by-step explanation:

o

thx for the points :D

7 0
3 years ago
Read 2 more answers
A piece of stained glass in a shape of a right triangle has side measuring 8 centimeters 15 centimeters and 17 centimeters. What
Umnica [9.8K]
60<span>cm²
__________________________________________________________
-xo Cote♥
</span>
5 0
3 years ago
ABBBAAA what is the a to b ratio?
Ede4ka [16]

there are 4 A and 3 B.

so the ratio is 4 : 3

3 0
3 years ago
Describe a triangle for which the centroid, circumcenter, incenter, and orthocenter are the same point. What features of this tr
hjlf

Answer:

An equilateral triangle

Step-by-step explanation:

Because an equilateral has a feature that all sides have the same length and all angles are of the same, it does not matter from which side and peak the centroid, circumcenter, incenter and orthocenter is created, they would always end up at the same point.

3 0
3 years ago
Read 2 more answers
What expression can be used to find the total discount? Select all that apply. 0.3*42 or 3/10*42 or 0.03*42 or 3 *4.2
ehidna [41]

0.3*42   this gives you a 30% discount

3/10*42  this gives you a 30% discount

0.03*42 this gives you a 3% discount

3 *4.2  This is not a  discount

6 0
3 years ago
Other questions:
  • Forty percent of the players on a soccer team are experienced players. The coach wants to increase this percent. There are 10 pl
    15·1 answer
  • In a tank of water, a can of regular soda will sink to the bottom, but can a diet soda of diet soda of the same size will float
    13·2 answers
  • Plzzzz need help on top one
    12·2 answers
  • What is y= -4 7x -7y =-21
    10·1 answer
  • How do i solve this? i don't understand parenthesis!
    14·1 answer
  • If a triangle has lengths of 3gt and 54ft check all possible lengths for third side
    11·1 answer
  • Solve this system of linear equations. Separate the x- and y- values with a comma. 8x + 2y =-42 4x + 7y=-3
    10·1 answer
  • A chair for an adult is 20 in. tall and 16 in. wide. A builder
    9·1 answer
  • I'll give brainliest to the correct answer. Here are some answer choices:
    5·1 answer
  • Hi I'm the mom I would like some help with this
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!