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Tamiku [17]
3 years ago
9

Pls help Pls help Pls help

Mathematics
1 answer:
mina [271]3 years ago
5 0

Answer:

Step-by-step explanation:

this will be the outter circle minus the inner circle for the area of the sidewalk

area of circle = \pir^{2}

\pi11^{2} = 380.1327

\pi9^{2} = 254.469

380.1327 - 254.469 =125.6637062m^{2}

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The choice C.94

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3 years ago
Suppose that the number of bacteria in a certain population increases according to an exponential growth model. A sample of 2600
melisa1 [442]

Answer: There is 3.994% continuous growth rate per hour.

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Hence, there is 3.994% continuous growth rate per hour.

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