The roots routine will return a column vector containing the roots of a polynomial. The general syntax is
z = roots(p)
where p is a vector containing the coefficients of the polynomial ordered in descending powers.
Given a vector
which describes a polynomial
we construct the companion matrix (which has a characteristic polynomial matching the polynomial described by p), and then find the eigenvalues of it (which are the roots of its characteristic polynomial)
Example
Here is an example of finding the roots to the polynomial
--> roots([1 -6 -72 -27])
ans =
12.1229
-5.7345
-0.3884
Answer:
189.52
Step-by-step explanation:
184 x 0.03
5.52
184 + 5.52
189.52
Answer:
the answer will have a decimal but there is no such thing as type of answer.
there are many ways to answer this
<h2>
Answer:</h2>
<em>x = 6, x = 44; The zeros represent the number of monthly memberships where no profit is made.</em>
<h2>
Explanation:</h2>
Here we have the function:
that models the profit in dollars, where x is the number of memberships sold. In order to get the zeros we'll use the quadratic formula:
So the zeros are:
The zeros occurs when 
, so we can conclude that at those points there is no any profit.
In conclusion:
<em>x = 6, x = 44; The zeros represent the number of monthly memberships where no profit is made.</em>
