Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the 
A. 1.39
B. 10-4
C. 0.25
D. 104
Answer: B
Mathematics
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Divide and, if possible, simplify.
A. x
B. 3x
C. 3x
D. 3x
Mathematics
Use the properties of logarithms to evaluate the expression.log 10-12
A. log -12 B. -12 C. 12 D. 12 log 10
Mathematics
Expand.(
+ m)4
A. 49 + 28m
+ 42m2 + 4m3 + m4
B. 49 + 14m
+ 42m2 + 4m3
+ m4
C. 49 + 28m
+ 6m2 + 4m3
+ m4
D. 49 + 28m
+ 42m2 + 4m3
+ m4
Mathematics
Evaluate the expression. Write your answer without negative exponents.5-3
A. 125
B. 
C. 
D. -125
Mathematics