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mash [69]
3 years ago
8

Pleasee help! Brainliest to correct

Mathematics
1 answer:
Ket [755]3 years ago
6 0

Answer:

3.6

Step-by-step explanation:

I=k/d^2

360=k/3^2

k=360*9

k=3240

I=k/d^2

250=3240/d^2

250d^2=3240

d^2=3240/250

d=3.6

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