Find the indicated probability.The table below shows the soft drink preferences of people in three age groups.
If one of the 255 subjects is randomly selected, find the probability that the person is over 40 and drinks cola.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find the first term and the common ratio of the geometric sequence.2, -0.2, 0.02, -0.002, . . .
A. a1 = 2, r = 0.1 B. a1 = 2, r = -0.1 C. a1 = -0.1, r = -0.01 D. a1 = -0.1, r = -1
Mathematics
Use synthetic division to find the function value.f(x) = 2x4 - 5x3 - 2x2 - 2x - 2; find f(-2)
A. 90 B. -2 C. -36 D. 66
Mathematics
Solve the equation on the interval [0, 2?).Suppose f(x) = 2 cos ? + 1. Solve f(x) = 0.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The population growth of an animal species is described by 
where t is measured in months. Find the population of this species in an area 40 month(s) after the species is introduced.
A. 2700 B. 740 C. 5360 D. 380
Mathematics