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Given formula is
which gives approximate distance a light beam from a light house where "a" represents the area (in sqaure miles) that the light beam covers
Using this formula we have to estimate the distance the light beam covers the area 1000 square miles.
so that means a=1000
Now plug this value into above formula
r = 17.86686878
Hence final answer is approx 17.87 miles
The answer would be <span>A) rational.
The rational number is number that can be represented as a ratio of "a/b" where a and b is an integer. When you multiply two rational number of a/b and c/d, the result would be: a/b * c/d= ac/ bd
Since a and c is an integer, the product of ac would be integer too. The same thing applies to bd.
Since ac and bd is an integer, then ac/bd would be a rational number</span>
Answer:
domain all real numbers
range all real numbers
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