Solve the problem. 30% of the population of a village has a certain disease. If people in the village are selected successively at random, what is the probability that the 3th person selected is the first person with the disease?
A. 0.147000
B. 0.490000
C. 0.090000
D. 0.063000
Answer: A
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A polynomial P(x) and a divisor d(x) are given. Use long division to find the quotient Q(x) and the remainder R(x) when P(x) is divided by d(x), and express P(x) in the form d(x)? Q(x) + R(x).P(x) = x3 - x2 + 5d(x) = x + 2
A. (x + 2)(x2 - 3x + 6) + 5 B. (x + 2)(3x2 - 4x + 2) + 17 C. (x + 2)(x2 - 3x + 6) - 7 D. (x + 2)(x2 + x + 2) + 9
Simplify
Solve the system.4x2 - 2y2 = 285x2 + 5y2 = 65
A. {(3, 2), (-3, 2), (3, -2), (-3, -2)} B. {(3, -2), (3, 2)} C. {(3, 2), (2, 3), (-3, -2), (-2, -3)} D. {(-3, -2), (-2, -3)}
Solve the problem.Suppose the number of Quickie hamburgers (in millions) served yearly can be modeled by 
Approximate how many years it takes for the number of hamburgers served to reach 152 million. Round to the nearest year.
A. 9 yr B. 10 yr C. 11 yr D. 12 yr