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ratelena [41]
3 years ago
5

Some steps are shown in converting the following conic inequality from general form to standard form. Complete the conversion an

d identify the shape, key feature, and which ordered pair is part of the solution set. 9x2 – 18x + 4y2 + 16y – 11 > 0 9x2 – 18x + 4y2 + 16y > 11 9(x2 – 2x) + 4(y2 + 4y) > 11 9(x2 – 2x + 1) + 4(y2 + 4y + 4) > 11 + 9 + 16
Mathematics
2 answers:
cluponka [151]3 years ago
8 0

Answer:

Thank  you sir

Step-by-step explanation:

ellipse with dashed line boundary

(1,-2)

(-2,0)

vlabodo [156]3 years ago
5 0

Answer:

B, A, B, the guy above is correct

Step-by-step explanation:

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\underline{+\left\{\begin{array}{ccc}-2x-2y=-16\\2x+3y=36\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad y=20\\\\\text{Put the value of y to the firast equation:}\\\\x+20=8\qquad\text{subtract 20 from both sides}\\x=-12\\\\\boxed{(-12,\ 20)}

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