Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 3m - 5
D. 
Answer: A
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Find the distance that the particle travels in the first 3 seconds (from t = 0 to t = 3 ).
A particle is initially at the origin. Its velocity, in meters per second, at any time t , t ? 0 , is given by v (t ) = t 2 + 2t .
Graph the function, showing all asymptotes (those that do not correspond to an axis) as dashed lines. List the x- and y-intercepts.f(x) = 
A. x-intercepts: (-5, 0) and (4, 0)
y-intercept: 
B. x-intercepts: (-5, 0), (0, 0), and (4, 0)
y-intercept: (0, 0)
C. x-intercepts: (-5, 0) and (4, 0)
y-intercept: 
D. x-intercepts: (-5, 0), (0, 0), and (4, 0)
y-intercept: (0, 0)
Find the perimeter of the figure.
8
A. 22
B. 11
C. 22
D. 11
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