Help me please (image below)
...
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 19:00
What are the solutions of the equation? 16x^2 + 24x + 5 = 5 a. 1/4, 5/4 b. -1/4, -5/4 c. -1/4, 5/4 d. 1/4 , -5/4
Answers: 1
Mathematics, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10
Computers and Technology, 17.12.2020 21:10
Mathematics, 17.12.2020 21:10