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pychu [463]
3 years ago
9

A bin contains 100 sty le a notebooks, 100 style b notebooks, and 100 style c notebooks. antoine will select 3 notebooks from th

e bin. how many different selections of 3 notebook styles are possible?
Computers and Technology
1 answer:
emmasim [6.3K]3 years ago
7 0
<span>The answer is Ten.  Substituting numbers for letters, available selections are 111, 112, 113, 122, 123, 133, 222, 223, 233, 333.  Note that, for example, 112, 121, and 211 are considered as the same selection.
</span>AAA, BBB, CCC, <span>AAB, AAC, </span><span>BBC, </span><span>ABB, ACC, </span><span>CCB & ABC.</span>
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Read 2 more answers
Write a program that accepts a positive integer N as command-line argument, and outputs True if N is the square of some integer,
Ann [662]

Answer:

In Python:

N = int(input("Positive integer: "))

if N > 0:

   flag = False

   for i in range(1,N+1):

       if i * i == N:

           flag = True

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Explanation:

N = int(input("Positive integer: "))

If the number is positive

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       if i * i == N:

If yes, flag is set to true

           flag = True

The loop is exited

           break

This prints either true or false, depending on the result of the loop

   print(str(flag))

If otherwise, that the number is not positive

<em>else:</em>

<em>    print("Positive integer only")</em>

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