A study conducted by Uni-Mart, a mail-order department store, reveals that the time intervals in minutes between incoming telephone calls on its toll-free 600 line between 9 A.M. and 2 P.M. are exponentially distributed with probability density function 
. What is the probability that the time interval between successive calls is more than 6 min? Round your answer to four decimal places.
?
A. 0.4899
B. ?0.8869
C. ?0.2950
D. ?0.1737
E. ?0.8981
Answer: B
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Solve the problem.The Mathematics Department is holding an election for department chair. Each member ranks the candidates from first to third. The preference schedule below shows the results of the ballots with candidates Clark (C), Jones (J), and Smith (S).
Who is the winner of a sequential runoff?
A. Clark B. Jones and Clark tie. C. Jones D. Smith
Determine whether the functions f(x) and g(x) are inverse functions.f(x) = x - 9, g(x) = x + 9
A. Yes B. No
Find an equation of the line satisfying the following conditions.If possible, write the equation in slope-intercept form. Vertical, passing through (-8.66, -2.99)
A. y = -8.66 B. x = -2.99 C. y = -2.99 D. x = -8.66
Insert <, >, or = to form a true statement.347.530 
347.503
A. = B. > C. <