Question 1206072
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<pre>

The expression under the square root operator should be non-negative.


So, the domain is the set of solutions to this inequality 

   
   t + 9 >= 0,  or, equivalently,  t >= -9.


<U>ANSWER</U>.  The domain is the set of real numbers t >= -9,  or  [-9,oo).
</pre>

Solved.


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