Solve the problem.A certain noise measures 75 decibels. If the intensity is multiplied by 1000, how many decibels will the new noise measure? Use the formula 
, where 
A. 78 decibels
B. 105 decibels
C. 75,000 decibels
D. 225 decibels
Answer: B
Mathematics
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Evaluate the improper integral.
A. 432 B. 288 C. 360 D. 216
Mathematics
Rank the data from lowest to highest and determine the requested quartile.Big Bucks Investment Club has a portfolio that includes stocks from 15 corporations listed on the New York Stock Exchange. The closing prices (in dollars) of each stock after yesterday's trading are listed below. 
Find the 3rd quartile, Q3.
A. 83
B. 104
C. 93
D. 53
Mathematics
Solve the absolute value inequality. Write your answer in interval notation.
> 8
A. (-?, -6) ? (0, ?) B. (0, ?) C. (-6, 6) D. (-6, 0)
Mathematics
Solve the equation by completing the square.8x2 + 7x = -2
A. 
B. 
C. 
D. 
Mathematics