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Select the correct answer.

Paul is gathering data about moss growth in a local forest. He measured an area of 11 square centimeters on one particular tree and will come back in 6 months to measure the growth of the moss. If the area covered by moss multiplies by one and a half times each month, approximately how much area will the moss cover when Paul returns?

A. [tex]99.1 \, \text{cm}^2[/tex]
B. [tex]14.7 \, \text{cm}^2[/tex]
C. [tex]125.3 \, \text{cm}^2[/tex]
D. [tex]16.5 \, \text{cm}^2[/tex]

Answer :

To solve this question, we need to determine the area of moss after 6 months, given that it multiplies by one and a half times each month.

1. Initial Area: The area currently covered by moss is 11 square centimeters.

2. Growth Factor: Each month, the moss multiplies by 1.5 (one and a half times), meaning it increases by a factor of 1.5.

3. Time Period: Paul will measure the moss growth after 6 months.

To find out the area covered by moss after 6 months, we can use the formula for exponential growth:

[tex]\[ \text{Final Area} = \text{Initial Area} \times (\text{Growth Factor})^{\text{Number of Months}} \][/tex]

Substituting the given values into this formula:

[tex]\[ \text{Final Area} = 11 \times (1.5)^6 \][/tex]

When you calculate this expression, you get a final area of approximately 125.3 square centimeters.

Therefore, the correct answer is:

C. [tex]\(125.3 \, \text{cm}^2\)[/tex]

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