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Answer:
See attached picture.
Step-by-step explanation:
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For remaining parts resubmit question.
Answer:
24.
Step-by-step explanation:
We can use the factorial function to find the number of unique arrangements in a word.
There are 4 unique characters in 'OPAL'. As such, 4! = 24.
In the case that there were repeating characters, such as 'OPALA', then we would divide by the factorial of the number of repeating letters. That looks something like this:
Hope this helped.
we know that
step 1
multiply by
so
step 2
Divide numerator and denominator by
therefore
the answer is