Solve the problem.A boat goes 210 miles downstream in the same time it can go 140 miles upstream. The speed of the current is 8 miles per hour. Find the speed of the boat in still water.
A. 40 mph
B. 35 mph
C. 32 mph
D. 48 mph
Answer: A
Mathematics
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+ 
= -1
A. 
B. {1}
C. {0}
D. ?
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Draw the graph of the equation.x2 = 5y
A. 
B. 
C. 
D. 
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Find the sum.3 + (-2)
A. -5 B. 5 C. -1 D. 1
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Express the sum or difference as a product of sines and/or cosines.sin(4?) - sin(2?)
A. 2 sin ? cos(3?) B. sin ? cos(3?) C. sin(3?) cos ? D. 2 sin(3?) cos ?
Mathematics