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Lera25 [3.4K]
3 years ago
13

How many four letter passwords can be created if no repetition is allowed?

Mathematics
1 answer:
Shkiper50 [21]3 years ago
8 0

Answer:

840

Step-by-step explanation:

7*6*5*4=840

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Help please!
bagirrra123 [75]

(d):  y = mx+n

m = -2/3 ⇒ y = (-2/3)x +n

A(-4,  6) ∈ d  ⇒ 6 = (-2/3)·(-4) +n ⇒ 6 = 8/3 +n ⇒

⇒ n = 6 - 8/3 ⇒ n = 10/3

Now, we have:

y = (-2/3)x +10/3


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