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Shkiper50 [21]
3 years ago
10

Your answer is incorrect. Suppose that a "code" consists of 6 digits, none of which is repeated. (A digit is one of the 10 numbe

rs 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 .) How many codes are possible?

Mathematics
2 answers:
yarga [219]3 years ago
8 0
Use factorials to solve this problem.

When you are choosing a number of digits from a set without repetition, you will use the following formula:

\frac{n!}{(n-r)!}

n represents the total amount of items in the set, and r represents the number of items you will take out.

There are 10 digits, and you are choosing sets of 6 digits for your code. Plug the values into the equation:

\text{n = 10, r = 6}

\frac{10!}{(10-6)!} = \frac{10!}{4!} = \boxed{151,200}

There are 151,200 different 6-digit codes possible.
Vlada [557]3 years ago
5 0
Take me the brayniest.i hope it was helpful

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MissTica

Answer:

$0.75 per song

Step-by-step explanation:

Given that the relationship between variable s and c is a proportional relationship, and is represented by the equation, c = 0.75s.

Where,

c = total costs

s = number of songs

The constant of proportionality, k, = 0.75.

Thus, 0.75 represents the cost per sing downloaded.

The answer is:

✔️$0.75 per song

7 0
3 years ago
(-4)^2 <br> (-3)^3<br> Evaluate
iris [78.8K]
(-4)^2= 16

(-3)^3= -27
7 0
3 years ago
Read 2 more answers
The ratio of chaperones to students on a field trip to New York City is 2 to 11. If there are 297 students on the trip, how many
Olenka [21]
297/11 = 27

So we have 27 groups of 11 students. If there are 2 chaperones for every 11 students, then we can do:

27x2=54

There are 54 chaperones on the field trip.
7 0
2 years ago
2.
FromTheMoon [43]

Answer:

The dimensions of the park is 18yd by 18yd

Step-by-step explanation:

A square-shaped park has an area of 324 yd.

A square is composed of equal length dimensions so if the area is 324 yd² ,the dimensions or length if one side of the square will be the root of 324 yd².

Length= √324

Length= 18 yd

Dimensions of the park is 18 yd by 18 yd

3 0
3 years ago
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bazaltina [42]

Answer:gotta go sorry

Step-by-step explanation:

3 0
3 years ago
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