ANSWER
One real root.
EXPLANATION
The graph of the function
is shown in the attachment.
According to the Fundamental Theorem of Algebra, this function must have 3 roots including real and complex roots.
The x-intercepts gives the number of real roots.
Observe that the graph has only one intercept.
This implies that, the equation:
has only one real solution.
Given:
Increase 15837.77 by 8.5%.
To find:
The answer rounded to two decimal places.
Solution:
We have,
Initial value = 15837.77
Increasing percent = 8.5%
Now, the value after increasing by 8.5 % is
Round the value to two decimal places.
Therefore, the required value is 17183.98.