Find the domain of the rational function.f(x) = 
A. {x|x ? -5, x ? 5, x ? -4}
B. {x|x ? 0, x ? 25}
C. {x|x ? -5, x ? 5}
D. all real numbers
Answer: B
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Find the probability.A card is drawn at random from a standard 52-card deck. Find the probability that the card is an ace or not a club.
A. 
B. 
C. 
D. 
Solve the problem.The force acting on a pendulum to bring it to its perpendicular resting point is called the restoring force. The restoring force F, in Newtons, acting on a string pendulum is given by the formula F = mg sin?where m is the mass in kilograms of the pendulum's bob, g ? 9.8 meters per second per second is the acceleration due to gravity, and ? is angle at which the pendulum is displaced from the perpendicular. What is the value of the restoring force when m = 0.7 kilogram and ? = 72°? If necessary, round the answer to the nearest tenth of a Newton.
A. 6.7 N B. 6.5 N C. 2.1 N D. 1.7 N
Use the definition of inverses to determine whether f and g are inverses.f(x) = 
, g(x) = 
A. No B. Yes
Solve the equation.
n = 9
A. 4
B. 
C. 
D. 18