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3 years ago

Round 154,394 to the nearest hundred thousand

Mathematics

1 answer:

Leviafan [203]3 years ago

6 0

150,000 because its 5 or higher add one more 4 or lower just ignore so since its 4 i just lowered it to 0

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the pitch, or frequency, of a vibrating string varies directly with the square root of the tension. if a string vibrates at a fr

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$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
\begin{array}{llll}
\stackrel{frequency}{f}\textit{ of a vibrating string varies directly}\\
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\end{array}$

$\bf f=k\sqrt{t}\quad \textit{we also know that }
\begin{cases}
f=300\\
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\end{cases}\implies 300=k\sqrt{8}
\\\\\\
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$\bf thus\qquad f=\stackrel{k}{75\sqrt{2}}\sqrt{t}\implies \boxed{f=75\sqrt{2t}}\\\\
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