A photographer reduces the size of a photo by 20%. If the length of each side is 12 cm,

Mathematics

1 answer:

olchik [2.2K]2 years ago

7 0

Answer:

9.6 cm

Step-by-step explanation:

12 x .8 = 9.6cm

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Step-by-step explanation:

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$\bf 5n^2+6n+7=n^2-4n\implies 5n^2+6n+7-n^2+4n=0
\\\\\\
4n^2+10n+7=0\\\\
-------------------------------\\\\
\begin{array}{llccll}
&{{ 4}}x^2&{{ +10}}x&{{ +7}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}
\\\\\\
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negative&\textit{no solution}
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I hope that this is the answer that you were looking for and the answer has actually come to your desired help.

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