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Vinvika [58]
2 years ago
7

3. How many 4-letter code can be formed using the first 10 letters of the English alphabet, if no letter can be repeated?

Mathematics
1 answer:
galben [10]2 years ago
7 0
Abcdefg
There cannot be more than two because there are only two vowels, e and a. But it has to be 4 lettered, which limits a lot of option, so there can only be one 4-letter code.
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If aſc and a +b = C, prove that a|b.
mars1129 [50]

Answer with Step-by-step explanation:

Since we have given that

a + b = c

and a|c

i.e. a divides c.

We need to prove that a|b.

⇒ a = mb for some integer m

Since a|c,

So, mathematically, it is expressed as

c= ka

Now, we put the above value in a + b = c.

So, it becomes,

a+b=c\\\\a+b=ka\\\\b=ka-a\\\\b=a(k-1)\\\\\implies a|b

a=mb, here, m = k-1

Hence, proved.

7 0
3 years ago
What is the mean median mode and range of the numbers 31 28 30 31 30 ...?
mamaluj [8]
1. Mean is the number you get when you add all these numbers and then divide by the number of numbers. So, (31 + 28 + 30 + 31 + 30) / 5 = 150 / 5 = 30
2. The median is the middle number in the list of numbers, so, the answer is 30 as well.
3. Mode is the number that appears most often, so here it is 30 and 31 because they both appear 2 times.
4. Range is the difference between the largest and smallest number, so 31 - 28 = 3. 
5 0
2 years ago
What is the area of the figure shown below? giving brainly!!
siniylev [52]

Answer:

4073.76

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
I need help asap :):)/
Anastaziya [24]

Answer:

35

Step-by-step explanation:

If they won 4/5 then they lost 1/5. If 1/5 is 7 then you need five 7s.

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4 0
3 years ago
Read 2 more answers
Here is a list of numbers:
ANEK [815]

Answer:

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Hope it helps

5 0
1 year ago
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