The temperature started at 87°f. if the temperature went down 10°f and then up 17°f, whats is the temperature difference relative to the low temperature?

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Ответ:

sarahjunexx

08.07.2020

Mathematics

Second option is the correct choice.

Step-by-step explanation:

"The discriminant is −4, so the equation has no real solutions."

$x^2-4x+5=0\\\\a=1,\:b=-4,\:c=5:\\\\b^2-4ac=\left(-4\right)^2-4\cdot \:1\cdot \:5=-4$

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