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

Answer :

To solve this problem, we want to find out how much area the moss will cover after 6 months if it multiplies by one and a half times each month, starting from an initial area of 11 square centimeters.

Here's a step-by-step approach:

1. Understand the Growth Factor: The moss grows by one and a half times each month. This means every month the area multiplies by 1.5.

2. Initial Area: The starting area of moss on the tree is 11 square centimeters.

3. Calculate Growth Over 6 Months: Since the moss grows at a consistent rate each month, we will multiply the initial area by 1.5 for each month over a period of 6 months. In mathematical terms, this is expressed as multiplying the initial area by 1.5 raised to the power of 6. This can be written as:

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

4. Calculate the Exponentiation: First, calculate the value of [tex]\(1.5^6\)[/tex].

5. Find the Final Area: Multiply 11 by the result from step 4 to get the final area of the moss.

Following the above steps, the area that the moss will cover after 6 months is approximately 125.3 square centimeters.

Therefore, the correct answer is:
A. [tex]\(125.3 \, \text{cm}^2\)[/tex]

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