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4 years ago

1. According to the graph, how many hours a day does the average teenager spend at school.

Mathematics

1 answer:

shutvik [7]4 years ago

5 0

There are 24 hours in a day. 25% is 25 / 100

% can always be replaced by divide by 100.

25/100 * 24 = 25*24/100 = 600 / 100 = 6

Therefore someone spends 6 hours a day in school.

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Hitman42 [59]

$\bf sin^{-1}(some\ value)=\theta \impliedby \textit{this simply means}
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sin(\theta )=some\ value\qquad \textit{now, also bear in mind that}
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% tangent
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-------------------------------\\\\$

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\\\\\\
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\textit{using the pythagorean theorem}\\\\
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c=hypotenuse\\
a=adjacent\\
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\\\\\\
\textit{we don't know if it's +/-, so we'll assume is the + one}\quad \sqrt{21}=a\\\\
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\\\\\\
\textit{and now, let's rationalize the denominator}
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$

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