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vazorg [7]
3 years ago
14

What is the radius of a sphere with a surface area of 144πcm2?

Mathematics
2 answers:
Bad White [126]3 years ago
8 0

I believe the radius would be 3.39

Hope this helps! Good luck! :)

marusya05 [52]3 years ago
7 0
<h2>Surface Area = 4πr²</h2>

144(π)cm² = 4(π)r²             Divide by π on both sides

144cm² = 4r²                      Divide by 4 on both sides

36 = r²                               Find the square root of both sides

√36 = √r²

<h2>6 = r</h2>
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Taryn conducted a science experiment on saturation. She added sugar to sugar water solution at different intervals. The graph sh
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y=mx+c

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You have:
y=\textunderscore\textunderscore \ x + \textunderscore
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To calculate the c, you just see where the line crosses the y-axis. Because you have the point (0, 1), you know that when x=0, y=1. Because x=0 is on the y-axis, you can tell that the line passes through y=1. This makes your c = 1:

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8 0
2 years ago
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Would you solve the equation 0.25x + 7 = 1/3x – 8 <br> using fractions or decimals? Explain please.
mamaluj [8]

Answer:

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Solve the value of x :

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0.25x - \frac{1}{3}x  + 7 = \frac{1}{3}x - \frac{1}{3}x  - 8

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\frac{-\frac{1}{12}x}{-\frac{1}{12}} = \frac{-15}{-\frac{1}{12}}

x = -15 (-12)

x = 180

Therefore, the value of x is 180.

7 0
3 years ago
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