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if no digit appears more than once how mang 2-digit numbers can be formed from the digits 1,3,5, and 7?

If No Digit Appears More Than Once How Mang 2digit Numbers Can Be Formed From The Digits 135 And 7 class=

Answer :

Answer:

12

Step-by-step explanation:

You can choose the first digit 4 ways.

After that and since we want no repeats, we can choose the third digit 3 ways.

4 times 3 =12

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Answer:

12               Mark me as brainliest!!

Step-by-step explanation:

how many 2-digit can be formed from the digits...

Combine all the digits without repeating

13, 15, 17

31, 35, 37

51, 53, 57,

71, 73, 75

12 digits

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