Solve.A bag contains 19 balls numbered 1 through 19. What is the probability of selecting a ball that has an even number when one ball is drawn from the bag?
A. 
B. 
C. 
D. 9
Answer: A
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Compare the right-hand and left-hand derivatives to determine whether or not the function is differentiable at the point whose coordinates are given.
y = xy = 2x
A. Since limx?0+ f '(x) = -2 while limx?0- f '(x) = -1, f(x) is not differentiable at x = 0. B. Since limx?0+ f '(x) = 2 while limx?0- f '(x) = 1, f(x) is not differentiable at x = 0. C. Since limx?0+ f '(x) = 1 while limx?0- f '(x) = 2, f(x) is not differentiable at x = 0. D. Since limx?0+ f '(x) = 1 while limx?0- f '(x) = 1, f(x) is differentiable at x = 0.
Provide an appropriate response.The sum of an infinite geometric series exists if:
A. |r| ? 1 B. |r| ? 1 C. |r| < 1 D. |r| > 1
Use a graphing calculator to graph the function using the given viewing window. Use the graph to decide if the function is one-to-one. If the function is one-to-one, give the equation of the inverse function.f(x) = x4 - 6x2 + 5; [-3, 3] by [-40, 40]
A. One-to-one; f-1(x) = 
B. One-to-one; f-1(x) =
+ 6x2
C. One-to-one; f-1(x) = 
D. Not one-to-one
Solve the system of linear inequalities.x - y ? 0 y ? -3x + 6
A. 
B. 
C. 
D. 