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schepotkina [342]
3 years ago
5

An employee working in a machine shop is exposed to three different sources which emit noises at 81 dB, 91 dB, and 88 dB. What i

s the combined noise level exposure?

Mathematics
1 answer:
leonid [27]3 years ago
5 0
Hello,
Please, see the attached file.
Thanks.

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