Question 1175752
.
The equation that represents the transmission boundaries of a cercullar phone tower is x²+y²-10x+2y-199=0. 
What is the greatest distance, in kilometers, can the signal of the tower be transmitted?
~~~~~~~~~~~~~~~~~~~~


<pre>
The written equation represents a circle


    {{{(x-5)^2}}} + {{{(y-1)^2}}} = 199 + 25 + 1 = 225.


The radius of this circle is  {{{sqrt(225)}}} = 15 units.


Based on it, the greatest distance, in kilometers, to which the signal from the tower can be transmitted, is 15 kilometers.
</pre>