Mathematics: AND EXPLAIN HOW YOU GOT IT.

AND EXPLAIN HOW YOU GOT IT. - id11540407, mikelback419

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arichar

27.02.2021

Mathematics

So you have 125% Convert to decimal 1.25 Multiply by an unknown e E × 1.25 = 30E= 24

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Ответ:

zakariaaap1

05.10.2021

Mathematics

$x^2=-5x-3\\x^2+5x+3=0\\\\a=1;\ b=5;\ c=3\\\Delta=b^2-4ac\\\\\Delta=5^2-4\cdot1\cdot3=25-12=13 \ \textgreater \ 0\\\\then\\x_1=\dfrac{-b-\sqer\Delta}{2a}\ and\ x_2=\dfrac{-b+\sqrt\Delta}{2a}\\\\x_1=\dfrac{-5-\sqrt{13}}{2\cdot1}=\boxed{\dfrac{-5-\sqrt{13}}{2}}\\\\x_2=\dfrac{-5+\sqrt{13}}{2\cdot1}=\boxed{\dfrac{-5+\sqrt{13}}{2}}$

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AND EXPLAIN HOW YOU GOT IT.

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