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The intensity of a radio signal from the radio station varies inversely as the square of the distance from the station. Suppose intensity is 8000 units at a distance of 2 miles. What will the intensity be at a distance of 11 miles? Round your answer to the nearest unit.

Respuesta :

Ckaranja
I[tex] \alpha \frac{1}{s} [/tex]
I=[tex] \frac{k}{s} [/tex]
8000=[tex] \frac{k}{2} [/tex]
k=16000
when s= 11 miles, then,
I=[tex] \frac{16000}{11} [/tex]
I=1155 units

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