3 years ago

Use the given cost table for the same product from two different companies to create a linear syst

1 answer:

5 0

Answer:

209 and 369 that's the answer

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Art [367]

$\text{The vertex of}\ ax^2+bx+c:\\\\(h,\ k),\ \text{where}\ h=\dfrac{-b}{2a};\ k=f(h)=\dfrac{-(-b^2-4ac)}{4a}$

$\text{We have:}\\f(x)=x^2+5x-3\\\\a=1,\ b=5,\ c=-3\\\\h=\dfrac{-5}{2\cdot1}=\dfrac{-5}{2}=-2.5\\\\k=f(-2.5)=(-2.5)^2+5(-2.5)-3=6.25-12.5-3=-9.25$

$\text{Answer: the vertex is in}\ (-2.5;\ -9.25)$

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dolphi86 [110]

Answer:

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lesya [120]

The answer is $36

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alisa202

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const2013 [10]

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Nikolay [14]

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