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Gnom [1K]
3 years ago
12

The loudness, L, measured in decibels (Db), of a sound intensity, I, measured in watts per square meter, is defined as mc024-1.j

pg, where mc024-2.jpg and is the least intense sound a human ear can hear. What is the approximate loudness of the intense music concert, measuring an intensity of 10-1, Adrian and Trey are attending?
a- 2 Db
b- 22 Db
c- 60 Db
d- 110 Db

Mathematics
2 answers:
Alex Ar [27]3 years ago
8 0
We have the given I = 10^-1 and I₀ = 10^-12.

Simply plugging in the values to the equation, we have:
L = 10log(10^-1/10^-12)
L = 110 Db

The answer is D.

(I used a scientific calculator in solving for L).
wariber [46]3 years ago
5 0

Answer:

The Answer is D on Edge. *110 Db*

Step-by-step explanation:

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Step-by-step explanation:

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Coefficient x^2 in the expansion of (2+x)^5
Monica [59]
Alright, expand the given equation:
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Answer:

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Explanation:

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love history [14]
--------------------------------------------------------------------------
Equation
-------------------------------------------------------------------------- 
 y - 9  = -  \dfrac{1}{2} (x + 2)

--------------------------------------------------------------------------  
Rearrange the equation
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y - 9 = - \dfrac{1}{2} (x + 2) \\ \\
 y - 9 = - \dfrac{1}{2}x - 1 \\ \\
 y - 9 + 9 = - \dfrac{1}{2}x - 1  + 9 \ \Longleftarrow \text{add 9 to both side} \\ \\
 y = -\dfrac{1}{2}x + 8

--------------------------------------------------------------------------  
slope of the perpendicular line
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slope = 2

(*the slope of the perpendicular line is the <span>negative reciprocal of the slope of line)</span>

---------------------------------------------------------------------------  
Substitute slope into equation y = mx + c
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y = 2x + c

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Find y-intercept
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y = 2x + c
At point (0, 4)
4 = 2(0) + c
c = 4

----------------------------------------------------------------------------  
Substitute y-intercept into the equation y = 2x + c
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y = 2x + 4

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Answer: y = 2x + 4
----------------------------------------------------------------------------- 

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3 years ago
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defon

Step-by-step explanation:

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5 0
2 years ago
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