An escalator in a department store is to carry people a vertical distance of 25 feet between floors. How long is the escalator if it makes an angle of 30° with the ground?
?
A. 42 feet
B. 31 feet
C. 41 feet
D. 50 feet
E. 39 feet
Answer: D
Mathematics
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B.
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A. 123 B. -137 C. -77 D. 63
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Rationalize the denominator.
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B.
C.
D.
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