Answer:
Step-by-step explanation:
Let represent the real numbers.
For the first part, all real numbers less than or equal to 9 in algebra is .
For the second part, all real numbers greater than or equal to 7 in algebra is .
To combine both inequalities, it would become .
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Given:
The function is:
Where y is the sales of lawn mowers t years after a particular model is introduced.
To find:
How many mowers will be sold 3 years after a model is introduced?
Solution:
We have,
Substituting , we get
On substituting the approximate value of ln(31), we get
Therefore, the 18887 mowers will be sold 3 years after a model is introduced.