Mathematics: How many different three-letter passwords can be formed from the letters a, b, c, d, e, and f if no repetition of letters is allowed?

How many different three-letter passwords can

Ответ:

k123loveme

10.01.2022

Without any restrictions on the number of repetitions, we found 216 three-letter words. Of those, there are exactly 6 which have letters repeated 3 times (AAA, BBB, CCC, DDD, EEE, and FFF).

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Ответ:

meandmycousinmagic

20.06.2022

Mathematics

Q19 - x = 7

Q20 - x = 24

Step-by-step explanation:

Q19.

75 + x + 8 = 90°

83 + x = 90°

x = 90 - 83

x = 7

{CHECK: 75 + 7 + 8 = 90°}

Q20.

3x - 6 + x = 90°

4x - 6 = 90°

4x = 96

x = 96 / 4

x = 24

{CHECK: 3(24) - 6 + 24 = 90°}

hope this helps...

have a great day ahead ;)

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How many different three-letter passwords can be formed from the letters a, b, c, d, e, and f if no repetition of letters is allowed?

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