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ser-zykov [4K]
3 years ago
12

the area of a circle 200 mm in diameter is approximately how many times greater than the area of circle 40 mm in diameter

Mathematics
1 answer:
babunello [35]3 years ago
8 0
As the area of the circle is proporcional of R^2...

(200/40)^2=5^2=25 times greater
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3 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%7B5%7D%5E%7B2x%20-%201%7D%20%20%3D%2012%5E%7Bx%7D%20" id="TexFormula1" title=" {5}^{2x - 1
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step by step explanation:

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52x−1+1=12x+1

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52x=12x+1

Subtract 12x from both sides

52x−12x=12x+1−12x

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40x=1

Divide both sides by 40

40x40 =140 

Simplify

x=140 

3 0
3 years ago
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