Solve the problem.An airplane flies 400 miles with the wind and 320 against the wind in the same length of time. If the speed of the wind is 40, what is the speed of the airplane in still air?
A. 365 mph
B. 160 mph
C. 360 mph
D. 350 mph
Answer: C
Mathematics
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Solve the problem.You are driving along a highway at a steady 81 ft/sec when you see a deer ahead and slam on the brakes. What constant deceleration is required to stop your car in 
A. 0.08 ft/sec2 B. 12.76 ft/sec2 C. 25.53 ft/sec2 D. 6.38 ft/sec2
Mathematics
Answer the question.List all numbers that must be rejected as possible solutions.
+ 
= 0
A. -4, -14, 16, 20 B. 4, 14, -16, -20 C. 4, 14 D. -4, -14
Mathematics
Tell whether the statement is true or false.
? 
A. True B. False
Mathematics
Find the midpoint of the line segment joining the points P1 and P2.P1 = (a, 2); P2 = (0, 3)
A. 
B. 
C. 
D. 
Mathematics