Solve.A plane flies 460 miles with the wind and 300 miles against the wind in the same length of time. If the speed of the wind is 24 mph, what is the speed of the plane in still air?
A. 139 mph
B. 104 mph
C. 119 mph
D. 114 mph
Answer: D
Mathematics
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Solve the problem.Bob and Fred play the following game. Bob rolls a single die. If an even number results, Bob must pay Fred the number of dollars indicated by the number rolled. On the other hand, if an odd number is rolled, Fred must pay Bob the number of dollars indicated by the number rolled. Find Fred's expectation.
A. $0.00 B. $0.25 C. -$0.10 D. $0.50
Mathematics
Solve the equation.log5 (2x - 3) + log5 x = 1
A. ?
B. {-1}
C. 
D. 
Mathematics
Find an equation of the parabola described.Focus at (5, 0); vertex at (0, 0)
A. y = 20x2 B. y2 = 20x C. x = 20y2 D. x2 = 20y
Mathematics
Multiply.(5.4x2)(2x9)
A. 10.8x11 B. 108x18 C. 10.8x18 D. 1.08x11
Mathematics