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Vilka [71]
2 years ago
8

Question 2 of 10

Mathematics
1 answer:
Veronika [31]2 years ago
8 0

Answer:

D

Step-by-step explanation:

Use the general formula of quadratic equation:

x_{1,2}=\dfrac{-b \pm\sqrt{b^2-4ac}  }{2a} = \dfrac{6\pm\sqrt{36-40}}{4}=\dfrac{6\pm2i}{4} = \dfrac{3\pm i}{2}

Thus we choose D

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the slope of the first line is 2

to get the line perpendicular, you swap the numerator and denominator, then if positive make negative and the other way around

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Length: meter

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