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dlinn [17]
3 years ago
8

(-9)-(-13)+(3)

Mathematics
1 answer:
Cloud [144]3 years ago
4 0
Hi,

( - 9) - ( - 13) + (3)  \\  - 9 - ( - 13) + (3) \\  - 9 + 13 + 3 = 7

Hope this helps.
r3t40
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On the basis of data collected during an experiment, a biologist found that the growth of a fruit fly population (Drosophila) wi
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Answer:

(a). 15

(b). 78

Step-by-step explanation:

Growth of the population of a fruit fly is modeled by

N(t) = \frac{600}{1+39e^{-0.16t} }

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(a). For t = 0 [Initial population]

N(0) = \frac{600}{1+39e^{-0.16\times 0} }

       = \frac{600}{1+39}

       = \frac{600}{40}

       = 15

Initial population of the fruit flies were 15.

(b).Population of the fruit fly colony on 11th day.

N(11) = \frac{600}{1+39e^{-0.16\times 11} }

       = \frac{600}{1+39e^{-1.76} }

       = \frac{600}{1+39\times 0.172 }

       = \frac{600}{1+6.71}

       = \frac{600}{7.71}

       = 77.82

       ≈ 78

On 11th day number of fruit flies colony were 78.

3 0
4 years ago
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Hello!

We are given the equation below.

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I hope this helps!
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