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faltersainse [42]

3 years ago

10

To gain access to his account, a customer using an automatic teller machine (ATM) must enter a four-digit code. If repetition of

the same four digits is not allowed (for example 5555), how many possible combinations are there?

1 answer:

VMariaS [17]3 years ago

8 0

I’m not really much sure, I tried.

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pychu [463]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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For the differential equation dy/dt=ky, k is a constant, y(0)=24, and y(1)=18. What is the value of k?

Gre4nikov [31]

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prisoha [69]

Answer:

The first incorrect justification is in step 2.

Step-by-step explanation:

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2. BC ÷ DC = BC ÷ AC because triangle ABC is similar to triangle BDC

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