Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y.
x + 
y = 4
x + 
y = 2
A. 
or 
B. 
C. no solution
D. (0, 12)
Answer: A
Mathematics
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A. -5p3 B. 13p3 C. -13p3 D. 5p3
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Use properties of real numbers to calculate the expression mentally.
? 
? 
? 7 ? 
A. 
B. 
C. 
D. 
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Solve the equation by completing the square.a2 + 14a + 45 = 0
A. -5, -9
B. 5, 9
C. 54, -9
D. 
, - 
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Graph the parabola.y = 3(x - 4)2 - 6
A. 
B. 
C. 
D. 
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