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. 102
B. 10-2
C. 0.5
D. 0.69
Answer: B
Mathematics
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Evaluate the integral.
A. -ln
+ 
ln
+ C
B. -ln
+ 
ln
- 3 tan-1 t + C
C. -ln
+ 
ln
- 3 tan-1(sin t) + C
D. ln
- ln
- 5 tan-1(sin t) + C
Mathematics
Provide an appropriate response.
Graph sin x, sin 
, and sin 
on the same graph. Compare the graphs. How are they alike and how are they different? Use a graphing calculator.
What will be an ideal response?
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 6x
A. f-1(x) = 
B. f-1(x) = -6x
C. f-1(x) = 
D. f-1(x) = 6x
Mathematics
Find the quotient, and write in lowest terms, if necessary.-2 ÷ 
A. 
B. - 
C. - 
D. 
Mathematics