Solve the problem.A twin-engined aircraft can fly 912 miles from city A to city B in 4 hours with the wind and make the return trip in 6 hours against the wind. What is the speed of the wind?
A. 76 mph
B. 19 mph
C. 57 mph
D. 38 mph
Answer: D
Mathematics
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Determine if the given value is a solution to the equation.x + 8 = 12; 4
A. solution B. not a solution
Mathematics
Solve. Check for extraneous solutions.
= x - 3
A. {1, 6} B. {6, 13} C. {1, 13} D. {6}
Mathematics
Find the foci of the ellipse. Round to the nearest tenth if necessary.
+ 
= 1
A. (-17, 0), (17, 0) B. (-13, 0), (13, 0) C. (-15, 0), (15, 0) D. (-19, 0), (19, 0)
Mathematics
How long will it take an investment of $300 to triple, if the interest rate is 9.5% per year compounded continuously?
What will be an ideal response?
Mathematics