Posted by **Anonymous** on Monday, June 18, 2012 at 4:23pm.

Would someone please check my answer for me?

1)The equation x2 + (y + 4)2 = 49 models the boundary on a local map for which Darren can hear his friend Tom on his two-way radio when Darren is at home. How far (in miles) can Tom walk from Darren's home and still be heard?

3.5 miles

4 miles

14 miles

7 miles<----

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