Use the addition principle for counting to solve the problem.If n(A) = 20, n(A ? B) = 58, and n(A ? B) = 16, find n(B).
A. 58
B. 53
C. 55
D. 54
Answer: D
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Use the table to find the probability.The following table contains data from a study of two airlines which fly to Small Town, USA.
If a flight is selected at random, find the probability that the flight will arrive on time and that they fly with Upstate airlines.
A. 
B. 
C. 
D. None of the above is correct.
Prepare a frequency distribution for the given data with columns for intervals and frequencies.The following is the number of bonus points that 24 students have gotten for extra work. Use six intervals, starting with 0 - 49.21 89 100 182 214 201 166 104 51 45 62 29555 105 152 204 170 143 50 100 149 200 154 293
A. 
B. 
C. 
D. 
Find an equation for the parabola described.Vertex at (6, 1); focus at (6, 3)
A. (x - 6)2 = 8(y - 1) B. (y - 1)2 = 12(x - 6) C. (y - 1)2 = -12(x - 6) D. (x - 6)2 = -8(y - 1)
Find the points of inflection.f(x) = 8x - x3
A. (1, 8) B. (0, 0) C. (0, 0), (1, 8) D. No points of inflection exist