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Alexxandr [17]
3 years ago
8

Given f(x)=2\x^2-8x+36,find f(-4)

Mathematics
1 answer:
Keith_Richards [23]3 years ago
8 0
\frac{2}{(-4)^2-8(-4)+36} = \frac{2}{16+32+36} = \frac{1}{42}
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Answer:

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Step-by-step explanation:

let shirts be represented as x

let shorts be represented as y

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4 x + 3 y = $79    .......equation 1

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multiply equation 1 by 7 and equation 2 by -4 and add both equations to get the value of y.

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put value of y in equation 1

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