Solve the problem.A cruise boat travels 24 miles downstream in 2 hours and returns upstream in 12 hours. Find the rate of the stream.
A. 5 mph
B. 19 mph
C. 7 mph
D. 12 mph
Answer: A
Mathematics
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A. 
B. 
C. 
D. 
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Find the exact value of x.cos-1 x = csc-1 
A. 
B. 
C. 
D. 
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Subtract and simplify.
- 
A. 
B. 
C. 
D. 
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Add.(5n6 + 2n + 6n5) + (-8n5 + 8n6 + 8n)
A. 21n12 B. 13n - 2n6 + 10n5 C. 10n6 - 3n5 + 14n D. 13n6 - 2n5 + 10n
Mathematics