Solve the problem.The speed of a stream is 5 mph. If a boat travels 86 miles downstream in the same time that it takes to travel 43 miles upstream, what is the speed of the boat in still water?
A. 18 mph
B. 15 mph
C. 17 mph
D. 10 mph
Answer: B
Mathematics
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Perform the indicated operations.
2
A. x2 - 6xy + 9y2 B. x2 - 6xy2 + 9y4 C. x2 + 9y4 D. x2 + 6xy2 + 9y4
Mathematics
Add.
A. 16,007 B. 14,997 C. 15,007 D. 14,907
Mathematics
Use a calculator to find the approximate value of the composition. Round your answer to four decimal places. The expression may be undefined.tan (arcsin (2))
A. Undefined B. 0 C. -0.8172 D. 0.8944
Mathematics
Solve the proportion.
= 
A. 14 B. 6 C. 5 D. 8
Mathematics