Find the eccentricity of the ellipse.47x2 + y2 = 47
A. 
B. 
C. 
D. 
Answer: C
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Find the indicated term for the sequence.an = 
3; a13
A. 
B. 
C. 
D. 1
Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. 
D. 
Use Bayes' rule to find the indicated probability.A person must select one of three boxes, each filled with clocks. The probability of box A being selected is 0.15, of box B being selected is 0.25, and of box C being selected is 0.6. The probability of finding a red clock in box A is 0.2, in box B is 0.4, and in box C is 0.9. A box is selected. Given that the box contains a red clock, what is the probability that box A was chosen?
A. 0.045 B. 0.15 C. 0.03 D. 0.133
Solve the problem.On a certain route, an airline carries 6000 passengers per month, each paying $110. A market survey indicates that for each $1 decrease in the ticket price, the airline will gain 40 passengers.a. Express the number of passengers per month, N, as a function of the ticket price, x.b. Express the monthly revenue for the route, R, as a function of the ticket price, x.
A. a. N(x) = 40x + 10,400 b. R(x) = 40x2 + 10,400x B. a. N(x) = -40x + 10,400 b. R(x) = -40x2 + 10,400x C. a. N(x) = 40x + 1600 b. R(x) = 40x2 + 1600x D. a. N(x) = -40x + 1600 b. R(x) = -40x2 + 1600x