Dada a função f : R → R por f(x) = x² + 2x, determine o valor de f(2) +
f(3) – f(1)....
Mathematics, 03.03.2021 22:20 kashishmehta917
Dada a função f : R → R por f(x) = x² + 2x, determine o valor de f(2) +
f(3) – f(1).
Answers: 2
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The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).
Answers: 1
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