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. 10-5
B. 1.61
C. 0.2
D. 105
Answer: A
Mathematics
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Multiply.(2p4r2)(-5p2q3)(-q3r4)
A. 10p8q6r8 B. -10p8q6r8 C. 10p6q6r9 D. 10p6q6r6
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Solve the problem.Use Fleury's algorithm to find an Euler path for the following graph.
What will be an ideal response?
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Find all real numbers that satisfy the equation. Round approximate answers to the nearest hundredth.3 tan 
- 
= 0
A. {x|x = 1.57 + 3k?}
B. {x|x = 1.57 + 3k? or x = 1.57 + 3k?}
C. 
D. {x|x = 1.57 + k?}
Mathematics
Use the trapezoidal rule and Simpson's rule to approximate the value of the definite integral. Find the exact value of the integral.
?
?
A. 
B. ?
C. ?
D. ?
Mathematics