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mixas84 [53]
3 years ago
12

Can someone please help me i dont know the answer.

Mathematics
1 answer:
Nitella [24]3 years ago
5 0

Answer:

-272

Step-by-step explanation:

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Follows are the response to this question:

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Notes:

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2 years ago
Plz help me I've been dealing with this for 4 days. ​
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3 0
3 years ago
1- un tinaco se llena en 8 horas utilizando 4 llaves. en cuanto tiempo se llenara con 7 llaves?
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Step-by-step explanation:

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4 0
3 years ago
The area of a compact disc is 452 4/7 square centimeters. What is the diameter of a compact disc ? Use 22/7 as an approximation
motikmotik

\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} A=452\frac{4}{7} \end{cases}\implies 452\frac{4}{7}=\pi r^2\implies \cfrac{3168}{7}=\pi r^2 \implies \cfrac{3168}{7\pi }=r^2 \\\\\\ \stackrel{\pi =\frac{22}{7}}{\cfrac{3168}{7\cdot \frac{22}{7}}}=r^2\implies \cfrac{3168}{22}=r^2\implies 144=r^2\implies \sqrt{144}=r\implies 12=r \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{diameter=2r}{d=24}~\hfill

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3 years ago
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Inga [223]
-2 a b are a match. hope this helps 2-2=4
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3 years ago
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