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melisa1 [442]
1 year ago
11

Use PEMDAS to find the surface area.81 + 72(4)612 km2369 km2157 km2

Mathematics
1 answer:
DanielleElmas [232]1 year ago
3 0

Given:

\begin{gathered} 81+72(4) \\ \text{Using PEMDAS} \\ \text{ P = Parenthesis comes first} \end{gathered}

Hence,

81+\text{ 288}undefined

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Evaluate the expression<br>7 + 10 /5​
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9

Step-by-step explanation:

Use PEMDAS (Parenthesis, exponent, multiplication, devision, addition, subtraction)

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Hope this helps!

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The diagonal of a suitcase measures 30 inches and the height is 18 inches. What is the width of the suitcase to the
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Step-by-step explanation:

By the Pythagorean Theorem we know

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3 years ago
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11 m
liubo4ka [24]

first off let's notice that the height is 11 meters and the volume of the cone is 103.62 cubic centimeters, so let's first convert the height to the corresponding unit for the volume, well 1 meters is 100 cm, so 11 m is 1100 cm.

\textit{volume of a cone}\\\\ V=\cfrac{\pi r^2 h}{3}~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ V=\stackrel{cm^3}{103.62}\\ h=\stackrel{cm}{1100} \end{cases}\implies 103.62=\cfrac{\pi r^2 (1100)}{3} \\\\\\ 3(103.62)=1100\pi r^2\implies \cfrac{3(103.62)}{1100\pi }=r^2 \\\\\\ \sqrt{\cfrac{3(103.62)}{1100\pi }}=r\implies \stackrel{cm}{0.00510199305952} \approx r

6 0
2 years ago
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