Solve the quadratic equation using quadratic formula :

15x^2 – 11x + 2 = 0

Using the quadratic formula

x = - b ± √b² - 4ac /2a

15x² - 11x + 2 = 0

a = 15 b = -11 c = 2

x = --11 ± √ (-11)² - 4(15)(2)/2(15)

x = 11±√121-120/30

x= 11±√1/30

x = 11 ± 1/30

x = 11 + 1/30 or x = 11 - 1/30

x = 2/5 or x = 1/3

Hope this helps.

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

1 and 0

step-by-step explanation: