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Biology, 04.03.2021 09:30 Unicorn66y

What is always required to state a quantity in decibels? a. the number "20" in the equation

b. a reference value in the denominator of the ratio

c. the number "0.0002" in the numerator of the ratio

d. a reference value in the numerator of the equation

*** I put A but got it wrong! Pls help!

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What is always required to state a quantity in decibels? a. the number "20" in the equation
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