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. 2.51 × 10-3
B. 2.51 × 10-4
C. 3.98 × 10-4
D. 3.98 × 10-3
Answer: C
Mathematics
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Set up an integral for the length of the curve.y = 
, 
? x ? 
A. 
B. 
C. 
D. 
Mathematics
Factor by grouping.6x2 - 4x + 15x - 10
A. (2x - 5)(3x + 2) B. (6x + 5)(x - 2) C. (2x + 5)(3x - 2) D. (6x - 5)(x + 2)
Mathematics
Solve.4x - 8 = 4
A. x = 8 B. x = 12 C. x = 3 D. x = 9
Mathematics
Find the asymptotes of the hyperbola.6x2 - y2 - 48x + 6y - 129 = 0
A. y - 3 = 6(x - 4), y - 3 = -6(x - 4)
B. y - 3 = 
(x - 4), y - 3 = -
(x - 4)
C. y - 4 = 
(x - 3), y - 4 = -
(x - 3)
D. y - 3 = 
(x - 4), y - 3 = - 
(x - 4)
Mathematics