The chemical acidity of a solution is measured in units of pH: 
, where 
is the hydrogen ion concentration in the solution. What is ![]()
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?
A. 3.800
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis
A. 
?
B. 
?
C. 
?
D. 
?
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Solve the system by the addition method.
A. {(2, 0), (-2, 0)} B. {(3, 0), (-3, 0)} C. {(0, 3), (0, -3)} D. {(0, 2), (0, -2)}
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Simplify the factorial expression.
A. 
B. 56
C. 
D. 2!
Mathematics