Find the vertical asymptotes of the rational function.f(x) = 
A. x = - 
, x = 1
B. x = 
, x = -1
C. x = - 
, x = 1
D. x = 
, x = -1
Answer: D
Mathematics
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A. 2p - 8 B. 2p + 8 C. -2p - 8 D. -22p - 8
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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. 105 B. 10-5 C. 0.2 D. 1.61
Mathematics
cos2 t + cos t = 0
Find all values of t that satisfy the equation.
Mathematics
Use a calculator to find the logarithm. Give an approximation to four decimal places.log(4.51 × 103)
A. 3.0020 B. 3.6542 C. -2.3458 D. 0.6542
Mathematics