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3 years ago

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In 2010, the number of participants in a checkers tournament was 2.6x10^4 people. In 2013, the number of participants in a check

ers tournament was 5.2x10^5 people. By what factor did the number of participants increase from 2010 to 2013?

1 answer:

andrezito [222]3 years ago

6 0

10^4*2.6= 26000
10^5*5.2=520000
520000-26000
=494000

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Step-by-step explanation:

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$r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2$

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$\pi r^2=2152.96\pi$ <em>divide both sides by π</em>

$r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in$

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$r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in$

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Step-by-step explanation:

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