PLEASE HELP thansk
...
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 20:30
How do you determine if an ordered pair is a solution to a given equation?
Answers: 1
Mathematics, 21.06.2019 21:30
Which of the following disjunctions is true? 4 + 4 = 16 or 6 - 5 = 11 4 Β· 3 = 7 or 3 - 2 = 5 8 - 5 = 13 or 7 Β· 2 = 12 7 - 4 = 11 or 6 + 3 = 9
Answers: 1
Mathematics, 21.06.2019 22:00
Given that sinβ
= 1/4, 0 < β
< Ο/2, what is the exact value of cosβ
? a. (β4)/4 b. (β15)/4 c. (4Ο)/2 d. (4β2)/4
Answers: 2
English, 03.02.2021 20:50
History, 03.02.2021 20:50
Biology, 03.02.2021 20:50
Mathematics, 03.02.2021 20:50
History, 03.02.2021 20:50
Chemistry, 03.02.2021 20:50
Mathematics, 03.02.2021 20:50
Mathematics, 03.02.2021 20:50
Mathematics, 03.02.2021 20:50
Mathematics, 03.02.2021 20:50