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
Maslowich
3 years ago
11

How many four-letter codes can be made if no letter can be used twice?

Mathematics
2 answers:
ivanzaharov [21]3 years ago
8 0

There are 26 letters in the alphabet.

1st letter can be 1 of 26

2nd letter can be 1 of 25

3rd letter can be 1 of 24

4th letter can be 1 of 23

Total combinations = 26 x 25 x 24 x 23 = 358,800

dedylja [7]3 years ago
4 0

Answer:

solution given:

total alphabet =26

The first letter can be any one of the 26 letters in the alphabet.

so

1st word =26letter

since no word is repeated

2nd word =25letter

3rd word=24letter

4th word=23letter

so

four-letter code =26×25×25×23=<u>3</u><u>5</u><u>8</u><u>8</u><u>0</u><u>0</u><u>c</u><u>o</u><u>d</u><u>e</u><u>s</u>

so

<u>358800codes </u><u> </u> <u>of</u> four-letter codes can be made if no letter can be used twice.

You might be interested in
Find the value of the variable. If your answer is not an integer, leave it in simplest radical form.
tester [92]

So this is considered a "special triangle." The 30-60-90 triangle states that if the short leg is x, then the hypotenuse is 2x and the long leg is x√3.

Since we have the short leg, to find the hypotenuse, or y in this case, multiply the short leg by 2:

17 × 2 = 34

Next, to find the long leg, or x in this case, multiply the short leg by √3:

17 × √3 = 17√3

<u>In short, x = 17√3 and y = 34. The correct option is the last option.</u>

8 0
3 years ago
What would be the ratio of the number of cans to the price at super saver and price busters if a coupon for $1 off the total pur
faltersainse [42]
Sorry I don't know I can't help you
6 0
3 years ago
Solve 5w + 3 = 3w + 10
OverLord2011 [107]
X=7/12
Alright so let's solve this! :)
••• Subtract 3w from both sides.
<span><span><span><span>5w</span>+3</span>−<span>3w</span></span>=<span><span><span>3w</span>+10</span>−<span>3w</span></span></span><span><span><span>2w</span>+3</span>=10
</span>••• Subtract 3 from both sides.
<span><span><span><span>2w</span>+3</span>−3</span>=<span>10−3</span></span><span><span>2w</span>=7
</span>••• Divide both sides by 2.
<span>2w/2</span>=<span>7/<span>2
</span></span>=<span>7/2
and then 7/2=3.5
</span>
5 0
4 years ago
Read 2 more answers
What are the answers fast someone please
serious [3.7K]

Answer: (7,99.5)  and  (3,51.5)  

 

Step-by-step explanation:

Ordered pairs are like  represented by the x and y variables, where x  is the x coordinate and y is  y coordinate. In this situation, C  represents y and f represents x.

3 0
3 years ago
I dont understand how to do this
liraira [26]

Answer:

the answer is D.

Step-by-step explanation:

1/2x ÷ 3

1/2. × 1/2. 3× 1/2 is 1.5 then you round it and it is 2.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify the difference. (4w^2 – 4w – 8) – (2w^2 + 3w – 6)
    12·2 answers
  • How can u show 198,000 as a power of 10 using a exponet
    5·1 answer
  • What’s the slope of -1,-10 and -1,-2
    12·1 answer
  • Help me with this please ​
    11·1 answer
  • Simplify the expression\(\frac{2x^{-1}y}{x^3z}\) for \(x=2\), \(y=8\), and \(z=-1\).
    12·2 answers
  • What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec2
    13·1 answer
  • Express (2 + 6)2 as a trinomial in standard form.
    14·1 answer
  • Identify the type of correlation you would expect to see between the pair of data sets. Explain.
    13·2 answers
  • I need help please right answers only
    9·1 answer
  • 1. Q1) Which number is missing from this prime factor<br>tree?<br>​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!