Solve the problem.An aircraft going from Atlanta to Savannah on a heading of N 103° E is traveling at a speed of 650 miles per hour. The wind is out of the north at a speed of 21 miles per hour. Find the actual speed and direction of the aircraft.
A. 646 miles per hour; 105° from north
B. 648 miles per hour; 105° from north
C. 655 miles per hour; 105° from north
D. 916 miles per hour; 104° from north
Answer: C
Mathematics
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A. 0.03125 B. 0.015625 C. 3 D. 0.125
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Determine the coordinates of the focus and the equation of the directrix of the parabola.y2 = 40x
A. F(10, 0), x = 10 B. F(0, 10), y = -10 C. F(10, 0), x = -10 D. F(10, 10), x = 10
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Simplify.
A. 84 B. 60480 C. 168 D. 504
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Solve the equation by completing the square.x2 + 5x - 5 = 0
A. 
B. 
C. {-5 - 3
, -5 + 3
}
D. 
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