Solve the problem.If 81% of scheduled airline flights actually take place, and cancellations are independent events, what is the probability that 3 separate flights will take place?
A. 0.01
B. 0.66
C. 0.81
D. 0.53
Answer: D
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Solve.A weight on a vertical spring is given an initial downward velocity of 3 cm/sec from a point 6 cm above equilibrium. Assuming that the constant ? has a value of 2, find the location of the weight 2 sec after it is set in motion.
A. 1.7 cm below the equilibrium position B. 3.6 cm below the equilibrium position C. 2.8 cm below the equilibrium position D. 2.8 cm above the equilibrium position
Find the specified domain.For f(x) = x2 - 1 and g(x) = 2x + 3, what is the domain of f ? g?
A. [1, ?) B. (-1, 1) C. (-?, ?) D. [0, ?)
Find an equation of the line that contains the given point and is perpendicular to the given line. If possible, write your equation in slope-intercept form.(4, 5), 
A. y = - 
x - 
B. y = 8x - 37
C. y = - 8x - 37
D. y = - 8x + 37
Choose a reasonable method for solving the equation. Round your answers to three decimal places.
A) x = 2.852, x = -2.852
B) x = 2.852, x = -2.704
C) x = 2.704, x = -2.852
D) x = 1.426, x = -1.426
E) no real-number solution