Solve the problem.A certain noise has an intensity I of 
. Given that decibel level D is related to intensity by 
, where I0 is 10-12, determine the decibel level of the noise. Round your answer to the nearest decibel.
A. 184 decibels
B. 8 decibels
C. 70 decibels
D. 80 decibels
Answer: D
Mathematics
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A. parallel B. perpendicular C. neither
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Simplify the complex fraction.
a. 
b. 
c. 
d. 
e. 
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Find functions f and g so that h(x) = (f ? g)(x).h(x) = 
A. f(x) = 
, g(x) = 17x2 + 23
B. f(x) = 17x2 + 23, g(x) = 
C. f(x) = 
, g(x) = 
D. f(x) = 
, g(x) = x2
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Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. 75.91 B. 0.01 C. 20.04 D. 156.51
Mathematics