the captain of a boat knows that the lighthouse on the coast is 200 feet tall. he measures the angle of elevation to the top of
the lighthouse to be 2 degrees. how far is the boat from the coast? round to the nearest hundredth of a foot.
1 answer:
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Answer:
Step-by-step explanation:
The domain of a rational function is all real numbers <em>except </em>for when the denominator equals 0.
So, to find the domain restrictions, set the denominator to 0 and solve for x.
We have the rational function:
Set the denominator to 0:
Subtract 9:
So, the domain is all real numbers except for -9.
In other words, our domain is all values to the left of negative 9 and to the right of negative 9.
In interval notation, this is:
And we're done :)