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September 2, 2014

September 2, 2014

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

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<----

- Algebra2(check) -
**Reiny**, Monday, June 18, 2012 at 5:07pmIf you mean

x^2 + (y+4)^2 = 49

you have a circle with centre at (0,-4) and radius 7

You don't say where Darren's home is.

If it is at the centre of the cicle, then the answer is 7 miles

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