Solve the system by the addition method.x2 - 2y2 = 23x2 + 2y2 = 14
A. {(1, 2), (-1, 2), (1, -2), (-1, -2)}
B. {(2, 1), (2, -1), (-2, 1), (-2, -1)}
C. {(-1, 2), (1, -2)}
D. {(2, 1), (-2, -1)}
Answer: B
Mathematics
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A. {-8}
B. {8}
C. 
D. ?
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Determine the slope and the y-intercept.14y + 2x + 7 = 4 + 2x
A. Slope 0, y-intercept (0, - 
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, y-intercept (0, - 
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Solve. Use ? ? 3.14 when necessary.An airplane flying due south is 300 miles from the airport. Another airplane flying due west is 325 miles from the airport. How far apart are the two airplanes? Round to the nearest mile.
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