Quartic Model A dye is used in the blood to measure a patient’s cardiac output when there is potential for a heart attack. In a normal heart, the concentration of the dye is modeled by the function

LaTeX: C\left(t\right)=-0.005t^4+0.139t^3- 0.051t^2+1.800t, C ( t ) = − 0.005 t 4 + 0.139 t 3 − 0.051 t 2 + 1.800 t ,where C is concentration and t is time, measured in seconds.

(a) Use graphing software to graph and find the real zeros of the function.

(b) What must be true of two of the zeros of this function

(c) Explain why the end behavior of this function makes sense based on its leading coefficient and degree.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

can you put the picture up?

step-by-step explanation:

probably .5

i can on others if necessary.

i dont understand

step-by-step explanation: