This is a perfect example of exponential decay. In this case the growth factor should be represented by a fraction, and it is! This forest, starting out with apparently ( 800? ) pine trees, has a disease spreading, which kills 1 / 4th of each of the pine trees yearly. Therefore, the pine trees remaining should be 3 / 4.
Respectively 3 / 4 should be the growth factor, starting with 800 pine trees - the start value. This can be represented as such,
- where a = start value, b = growth factor, t = time ( <em>variable quantity</em> )
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Thus, the function
can model this problem. The forest after t years should have P( t ) number of pine trees remaining.
Using proportions, considering original measures of 10 feet, we have that:
- The horizontal measurement of the second garden is of 7.5 feet.
- The vertical measurement of the second garden is of 15 feet.
<h3>What is a proportion?</h3>
A proportion is a fraction of total amount.
In this problem, the total amount is the original measures of 10 feet.
The horizontal measurement has a scale factor of 75%, hence:

The vertical measurement has a scale factor of 150%, hence:

You can learn more about proportions at brainly.com/question/24372153
Answer:
The measure of an interior angle of a regular 15-gon is 120°.
Step-by-step explanation:
We need to determine the measure of the size of an interior angle of a regular 15-gon having 15 sides.
Thus,
The number of sides n = 15
Hence,
Using the formula to determine the measure of an interior angle of a regular 15-gon is given by
(n - 2) × 180° = n × interior angle
substitute n = 15
(15 - 2) × 180 = 15 × interior angle
13 × 180 = 15 × interior angle
Interior angle = (10 × 180) / 15
= 1800 / 15
= 120°
Therefore, the measure of an interior angle of a regular 15-gon is 120°.
which of the following numbers, -2/3, 0, 1/2, pie, 11/15, 25, 12, -5, 0.75, -1.82828282828282828282 are rational, irrational, wh
dexar [7]
Answer:
Step-by-step explanation
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Answer:18
Step-by-step explanation: 18=2.3.3