Solve the equation.
= 
+ 6
A. 4
B. 4, -4
C. -4
D. no solution
Answer: D
Mathematics
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Solve.An airplane travels 500 miles against the wind in 5 hours, and makes the return trip with the same wind in 2 hour(s). Find the rate of the wind.
A. 250 mph B. 100 mph C. 175 mph D. 75 mph
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Use addition to check the subtraction problem. If the answer is incorrect, find the correct answer.
3702
A. Incorrect; should be 3701 B. Incorrect; should be 3601 C. Incorrect; should be 3711 D. Correct
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Solve the problem.For what numbers ? is f(?) = sec ? not defined?
A. odd multiples of 
(90°)
B. all real numbers
C. odd multiples of ? (180°)
D. integral multiples of ? (180°)
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Use the shading capabilities of your graphing calculator to graph the inequality or system of inequalities.y ? |x + 6|y ? 3
A. 
B. 
C. 
D. 
Mathematics