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MissTica
3 years ago
10

Pls help me on this question

Mathematics
1 answer:
stiv31 [10]3 years ago
4 0

Answer:

I think the answer is option A

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lions [1.4K]

Answer:

222

Step-by-step explanation:230-8

4 0
2 years ago
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valkas [14]
Hope this helps lol :)

7 0
1 year 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

Dividing by 800:

(1.2)^t=1600/800=2

Taking logarithms:

t\log 1.2=\log 2

Dividing by log 1.2:

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

Calculating:

t = 3.8 years

Answer: C. 3.8 years

6 0
2 years ago
What is the value of a?
Paha777 [63]
I think the answer is 23
8 0
3 years ago
Primula Brandybuck is sampling the family harvest of tomatoes. She randomly selects 446 tomatoes and inspects them for cracking.
Marta_Voda [28]

Answer:

Step-by-step explanation:

5 0
3 years ago
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