Answers: 2
Mathematics, 21.06.2019 13:30
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
Mathematics, 21.06.2019 19:30
When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41
Answers: 1
Mathematics, 21.06.2019 23:00
Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.
Answers: 1
Please help I don’t understand what to do
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Mathematics, 12.08.2020 04:01
Mathematics, 12.08.2020 04:01
Mathematics, 12.08.2020 04:01
Mathematics, 12.08.2020 04:01
Mathematics, 12.08.2020 04:01
Mathematics, 12.08.2020 04:01