If $$ \sqrt {x^2+y^2}=25$$, and y=2x, find x.
5 1120 5eba39148e4fa473bcb80640
Q:
If $$ \sqrt {x^2+y^2}=25$$, and y=2x, find x.
- 15false
- 225false
- 3$$ \sqrt {125}$$true
- 4$$ \sqrt {5}$$false
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