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slega [8]
3 years ago
11

Can someone help me with this?

Mathematics
1 answer:
bulgar [2K]3 years ago
6 0

Answer:

I thinks its C , but im sorry if its wrong.

Step-by-step explanation:

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What is the volume of a sphere with surface area of 25 pi yd squared?
kherson [118]

\bf \textit{surface area of a sphere}\\\\ SA=4\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} SA=25\pi \end{cases}\implies 25\pi =4\pi r^2 \\\\\\ \cfrac{25\pi }{4\pi }=r^2\implies \cfrac{25}{4}=r^2\implies \sqrt{\cfrac{25}{4}}=r\implies \cfrac{\sqrt{25}}{\sqrt{4}}=r\implies \cfrac{5}{2}=r \\\\[-0.35em] ~\dotfill

\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}\qquad \qquad \implies V=\cfrac{4\pi \left( \frac{5}{2} \right)^3}{3}\implies V=\cfrac{4\pi \cdot \frac{125}{8}}{3}\implies V=\cfrac{\frac{500\pi }{8}}{~~\frac{3}{1}~~} \\\\\\ V=\cfrac{500\pi }{8}\cdot \cfrac{1}{3}\implies V=\cfrac{500\pi }{24}\implies V=\cfrac{125\pi }{6}\implies V\approx 65.45

7 0
3 years ago
what happens to the line if you change the slope a)if y = 2x + 3 and change it to y = 3x + 3 b)if you change the 2 to -2
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3 years ago
The basis for an effective evaluation of art is the<br> _____ analysis of the artwork.
horsena [70]

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Step-by-step explanation:

Visually analyzing the art work is an effective way

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