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Alex787 [66]
3 years ago
11

The equation for decibels and sound intensity is D=10log(sub 10) I/I(sub0) where D is decibels.

Mathematics
1 answer:
velikii [3]3 years ago
6 0
D=10\log\dfrac{I}{I_0}\\\\
D=10\log\dfrac{10^{11}}{10^{-12}}\\
D=10\log10^{23}\\
D=10\cdot23=\\
D=230
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3 years ago
If Acot theta + Bcot theta =4 and
geniusboy [140]

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b  

2

−a  

2

 

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           bcotθ+acscθ=q

⇒p  

2

−q  

2

=(p−q)(p+q)

                   =[acotθ+bcscθ−bcotθ−acscθ][acotθ+bcscθ+bcotθ+acscθ]

                   =[cotθ(a−b)−cscθ(a−b)][cotθ(a+b)+cscθ(a+b)]

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                   =(a  

2

−b  

2

)(cot  

2

θ−csc  

2

θ)

                   =(−1)(a  

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)[∵csc  

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7 0
2 years ago
In the table below, y is a linear function of x.
motikmotik

Answer:

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3 0
2 years ago
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