Mathematics, 01.04.2020 17:56 raidattarab
The roots of the quadratic equation $z^2 + az + b = 0$ are $-7 + 2i$ and $-7 - 2i$. What is $a+b$?
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Solve this system of equations. 12x − 18y = 27 4x − 6y = 10
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What is the equation of a line passing through (-6,5) and having a slope of 1/3
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In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%
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The roots of the quadratic equation $z^2 + az + b = 0$ are $-7 + 2i$ and $-7 - 2i$. What is $a+b$?...
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