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stiks02 [169]
3 years ago
7

A computer password uses 5 letters where no letter may be repeated. How many passwords are possible?

Mathematics
2 answers:
Artemon [7]3 years ago
7 0
The correct answer is 26!/21!. I have turned this in and gotten a 100. Hoped this helped ya .
lora16 [44]3 years ago
4 0

Answer: 7893600

Step-by-step explanation:

Given: The number of digits used for computer password = 5

Number of letter in English alphabet=26

By using permutations, the required number of passwordssuch that there is no letter repeated is given by :-

^{26}P_5=\frac{26!}{(26-5)!}\\\\=\frac{26\times25\times24\times23\times22\times21!}{21!}\\\\=26\times25\times24\times23\times22=7893600

Hence, there area 7893600 passwords are possible.

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She may or may not because it depends on how much is the food and drink
6 0
3 years ago
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H(x)=x−4h<br> What is the domain of h?
MAVERICK [17]

Answer:

h= x/ x+4

Step-by-step explanation:

Move all terms to the left side and set equal to zero, Then set each factor equal to zero.

3 0
2 years ago
The ratio of cars to trucks is 9:4. The ratio of trucks to SUV's is 12:21. There are 54 cars.
Elenna [48]

Answer:

Number of trucks = 24

Number of SUVs = 24

Step-by-step explanation:

A)

The ratio of cars to trucks is 9:4

The total ratio of cars to trucks is

9+4 = 13

Let x = sum of cars and trucks.

There are 54 cars. Therefore,

x = 54 + t trucks

Number of cars = ratio of cars/ total ratio × sum of cars and trucks. This means,

54 = 9/13 × x

9x / 13 = 54

9x = 13 × 54

9x = 702

x = 702 / 9 = 78

x = 54 + t trucks = number of trucks = 78 = 54 + t trucks

t trucks = 78 - 54 = 24

Number of trucks = 24

B)

The ratio of trucks to SUVs is 12:21

The total ratio of cars to trucks is

12 + 21 = 33

Let y = sum of trucks and SUVs

There are 24 trucks. Therefore,

x = 24 + s SUVs

Number of trucks = ratio of trucks / total ratio × sum of trucks and SUVs. This means,

24 = 12 / 33 × y

12y / 33 = 24

12y = 24 × 33

12y = 792

y = 792 / 12 = 66

y = 24 + s SUVs

66 = 24 + s SUVs

s SUVs = 66 - 24 = 42

Number of SUVs = 24

7 0
3 years ago
Which number shows 460,593 rounded to the nearest hundred thousand?
Mariulka [41]
Your answer is C. 500,000
4 0
3 years ago
How do I do this please help I'm in tears
irakobra [83]
F(x) is vertically stretched by a factor of 5/4 matches w/ f(x)-5/4
f(x) reflects the x axis matches w/ -f(x)
f(x) is translated 5/4 units up matches with f(x)+5/4
f(x) translated 5/4 to the left matches w/ f(x)-5/4

I didn't really know about this one but it seemed kind of easy, what was your first guesses and did you forget to put one more or was the question like that.


Hope this is right :) or if someone else has a different answer but in the meantime, good luck :)
3 0
3 years ago
Read 2 more answers
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