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NARA [144]
3 years ago
11

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.
Mathematics
1 answer:
ICE Princess25 [194]3 years ago
4 0
Let I represent intensity and and d the distance;
I\alpha  \frac{1}{ d^{2} }
When I=8000
8000=\frac{k}{4}
k=32000
I=\frac{32000}{d}
I=\frac{32000}{121}
I=265 units

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