Solve the system by the substitution method.x - 2y = 3x2 - xy = 20
A. {(-5, -1), (
, 8)}
B. {(5, 1), (- 
, -8)}
C. {(-5, -1), (8, 
)}
D. {(5, 1), (-8, - 
)}
Answer: D
Mathematics
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Graph the circle.(x - 2)2 + (y + 3)2 = 9 
A. 
B. 
C. 
D. 
Mathematics
Simplify.
A. 24 B. -72 C. -24 D. 72
Mathematics
Find the equation of the tangent line at the given point on the curve.xy2 = 4; (4, 1)
A. y = -8x + 33
B. y = - 
x + 
C. y = -2x + 9
D. y = - 
x + 3
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics