Word problem really need with this, and by end of day today would be best the total imports of petroleum ( in millions of barrels per day) in a given year is approximated by the polynomial 40x^3 -526x^2+2089x+6056, where x represents the number of years since 1975. the corresponding total of exports of petroleum is -x^3 +13x^2 +29x+189. write a polynomial that represents how many more barrels per day were imported than exported in a given year.

Place the compass at point A and open compass to greater than P draw arcs above and below the diameter

Step-by-step explanation:

* Lets revise how to construct a square

1. Using your compass, draw a circle and label the center O

2. Using your straightedge, draw a diameter of the circle, labeling the

   endpoints A and B.

3. Place the pin of the compass at point A and open it to greater than O

   draw an arc above and below the diameter

4. Without change the open of the compass place the pin of the

   compass at point B and draw an arc intersects the other arc above

   and below the diameter

5. Join the points of intersection above and below the diameter by a

   segment which is the perpendicular bisector of the diameter AB

6. Label the points where the bisector intersects the circle as C and D.

7. Join points A , B , C , D to form the square.

* Now lets solve the problem

- The step after drawing a circle with center P and diameter AB is:

* Place the compass at point A and open compass to greater than P

 draw arcs above and below the diameter

# Look to the attached graph for more understand