Solve the problem.A plane flying at an altitude of 20,000 feet descends 2000 feet four times before ascending 1000 feet. What is the current altitude of the plane?
A. 11,000 ft
B. 27,000 ft
C. 12,000 ft
D. 13,000 ft
Answer: D
Mathematics
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A. D: (-?, ?)
B. D: (-?, 0)
C. D: (-?, 0]
D. D: [0, ?)
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Find the probability.A committee of 17 members is voting on a proposal. Each member casts a yea or nay vote. On a random voting basis, what is the probability that the final vote count is unanimous?
A. 
B. 
C. 
D. 
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Multiply or divide.(-6.7)(5)
A. 33.5 B. -335 C. -3.35 D. -33.5
Mathematics
Solve the given equation.x2 = 17
A. 8.5 B. 2.8333 C. 4.1231 D. 5.6667
Mathematics