Solve the system using the elimination method or a combination of the elimination and substitution methods.4x2 - 2y2 = -23x2 + 5y2 = 57
A. {(2, 3), (3, 2), (-2, -3), (-3, -2)}
B. {(2, 3), (-2, 3), (2, -3), (-2, -3)}
C. {(-2, -3), (-3, -2)}
D. {(2, -3), (2, 3)}
Answer: B
Mathematics
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A. 
B. - 
C. 5
D. - 3
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A. 10; $8 B. 9; $8 C. 8; $8 D. 9; $9
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Evaluate the expression, if possible.81-5/4
A. - 
B. 
C. 243
D. not a real number
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Find x in the figure below.
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