Respuesta :

rococo908

Answer:

r = 0

Step-by-step explanation:

First, isolate r:

r² + 49 = 49

r² = 0

Take the square root of both sides to solve for r:

[tex]\sqrt{r^2}[/tex] = [tex]\sqrt{0}[/tex]

r = 0

So, 0 is the solution/zero.

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