Write a polynomial function in factored form with zeros at -2, 5, and 6. f(x) = (x + 2)(x - 5)(x - 6)
f(x) = (x - 2)(x + 5)(x + 6)
f(x) = x2 + 9x2 + 8x - 60
f(x) = x3 - 9x2 + 8x + 60

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your answer would be 10x - 1

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