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kozerog [31]
2 years ago
15

A keypad has only the letters A−D. What is the total number of possible outcomes if the code has 3 letters?

Mathematics
2 answers:
11Alexandr11 [23.1K]2 years ago
6 0

Answer:

64

Step-by-step explanation:

There are 4 options to choose from:

  • A
  • B
  • C
  • D

Each has a 1/4 chance of being picked.

For 3 times in a row, we would multiply the chance of being picked for one option, by whatever the other option's chance is.

As they all have the same chance, and it is 3 times in a row, we would do the following:

1/4 x 1/4 x 1/4

This is:

1/16 x 1/4

Which is:

1/64

Therefore, any possible combination has a 1/64 chance of occurring, meaning that there are 64 possible combinations that could be created.

____ [38]2 years ago
4 0

Answer:

9

Step-by-step explanation:

Because 3 letter to find that just do 3 times 3 which = 9

Hope This Helped

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Explain how to use the regression calculator to make a reasonable prediction given a data table. ​
zheka24 [161]

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Write the missing exponent <br><br> 256 = <br><img src="https://tex.z-dn.net/?f=%20%7B%3F%7D%5E%7B4%7D%20" id="TexFormula1" titl
antiseptic1488 [7]

Answer:

4^4

Step-by-step explanation:

256\div4=64\div4=16\div4=4

4\times4\times4\times4=256

4^4=256

Hope this helps.

3 0
3 years ago
Which pair of ratios form a proportion?
kumpel [21]
B.) 10:18 and 25:45
You can simplify this.
Divide the first part by 2.
5:9.
Divide the second half by 5.
5:9.
5:9 and 5:9
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