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timurjin [86]
3 years ago
13

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

Mathematics
2 answers:
Mandarinka [93]3 years ago
8 0

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

svp [43]3 years ago
6 0

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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Step-by-step explanation:

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4 0
3 years ago
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Step-by-step explanation:

The\  graph\  \frac{(y-3)^2}{25}+\frac{(x+1)^2}{4} > 1\   is\  shown\  in\  fig. 1\  (see \ below).\\The\  graph\  y\leq \sqrt{x+5}+2 \   is\  shown\  in\  fig. 2\ (see\  below).\\

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2 years ago
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nikitadnepr [17]
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Hope this helped
:D
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