Use the information in the table to solve the problem. Write your answer as a fraction in lowest terms.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater.
Find the ratio of pollutant C to pollutant D.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Express the value of the inverse hyperbolic function in terms of natural logarithms.csch-1 
A. ln 
B. ln 
C. ln 
D. ln 
Mathematics
Solve the problem. Round to one decimal place if needed.The zoo has hired a landscape architect to design the triangular lobby of the children's petting zoo. In his scale drawing, the longest side of the lobby is 18 centimeters. The shortest side of the lobby is 5 centimeters. The longest side of the actual lobby will be 38 meters. How long will the shortest side of the actual lobby be?
A. 1.4 m B. 10.6 m C. 136.8 m D. 0.1 m
Mathematics
Change to a percent.
A. 9
%
B. 1
%
C. 10
%
D. 93
%
Mathematics
Simplify.- 
A. 
B. 
C. - 
D. - 
Mathematics