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Anna007 [38]
3 years ago
12

: 2/18 of the students in Mr. P’s classroom had blonde hair. If there were 36 students in his class, how many students did not h

ave blonde hair?
HELP!
Mathematics
1 answer:
sesenic [268]3 years ago
7 0
4 did not have blonde hair
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{ \qquad\qquad\huge\underline{{\sf Answer}}}

Let's solve ~

Calculate discriminant :

\qquad \sf  \dashrightarrow \: 3 {x}^{2}  + 6x - 1

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Now, let's calculate it's roots ( x - intercepts )

\qquad \sf  \dashrightarrow \: x =  \cfrac{ - b  \pm \sqrt{d} }{2a}

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So, the intercepts are :

\qquad \sf  \dashrightarrow \: x =  \cfrac{ - 6 -  2 \sqrt{6}  }{6}

and

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