There are zero positive real roots for the given polynomial equation
. This is explained by Descarte's rule of signs. So, the best choice is T (true).
<h3>What is Descarte's rule of signs?</h3>
- Descarte's rule of signs tells about the number of positive real roots and negative real roots.
- The number of changes in signs of the coefficients of the terms of the given polynomial f(x) gives the positive real zeros of the polynomial.
- The number of changes in signs of the coefficients of the terms of the given polynomial when f(-x) gives the negative real zeros of the polynomial.
<h3>Calculation:</h3>
The given polynomial equation is 
On applying Descarte's rule of signs,

Since there are no changes in the signs of the coefficients of any of the terms in the above polynomial, the polynomial has no positive real roots.

Since there are four changes in the signs of the coefficients of the terms of the given polynomial when f(-x), the polynomial has 4 negative real roots.
Therefore, the given polynomial equation has zero positive real roots. So, the correct choice is T(true).
Learn more about Descarte's rule of signs here:
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Volume of the pyramid:

Perimeter of the cross-section:


Area of the cross-section:


First derivative test:

Then the height of the cross-section/pyramid is

The volume of the pyramid that maximizes the cross-sectional area
is

Answer:
A=4 B=100
Step-by-step explanation:
5+0.4 (4/10)= 5.4
5.4+0.08(8/100)=5.48
Answer:
Brown, purple, Green and Red/Pink
Step-by-step explanation:
The equations are equal where they intersect on the graph. There are 4 points at which the to graphs intersect. They intersect at the points colored brown, purple, green and red.