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 pH if the hydrogen ion concentration is 
A. -10
B. -4
C. 4
D. 10
Answer: C
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Provide an appropriate response.Explain the difference between a frequency distribution and a relative frequency distribution. Comment on the differences on the vertical axis scale. Given the same data set and the same classes, will the shapes of the frequency distribution and the relative frequency distribution be the same? You may draw a diagram to support your answer.
What will be an ideal response?
Multiply. Assume that all variables represent natural numbers.(x3n - y)(x2n- 6y2n)
A. x5n- 6x3ny - x2ny2n + 6y2n+1 B. x5n- 7x3ny2n + 6y2n+1 C. x5n- 6x3ny2n - x2ny + 6y2n D. x5n- 6x3ny2n - x2ny + 6y2n+1
Simplify the factorial expression.
A. 
B. 10
C. 10!
D. 1
Determine the XY - coordinates of (-2,5) if the axes are rotated through an angle  figure 1.png)
 figure 2.png)