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const2013 [10]
3 years ago
10

DOES ANYONE KNOW THISSS NEED HELP ASAP

Mathematics
2 answers:
Sergio [31]3 years ago
7 0

Answer:

its 0.625

Step-by-step explanation:

Allisa [31]3 years ago
5 0

Answer:

The answer is 0.625, lol

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A scientist is studying the impact of certain vitamins on a person's ability to remember. The sample size for the experimental g
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3 years ago
The population of deer forest is currently 800 individuals. Scientists predict that this population will grow at a rate of 20 pe
jonny [76]

Answer:

<em>C. 3.8 years</em>

Step-by-step explanation:

<u>Exponential Growth </u>

The natural growth of some magnitudes can be modeled by the equation:

P(t)=P_o(1+r)^t

Where P is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

The actual population of deer in a forest is Po=800 individuals. It's been predicted the population will grow at a rate of 20% per year (r=0.2).

We have enough information to write the exponential model:

P(t)=800(1+0.2)^t

P(t)=800(1.2)^t

It's required to find the number of years required for the population of deers to double, that is, P = 2*Po = 1600. We need to solve for t:

800(1.2)^t=1600

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(1.2)^t=1600/800=2

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t=\frac{\log 2}{ \log 1.2}

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