If f(x) = 3x² - 2x + 4 and g(x) 5x² + 6x - 8, find (f-g)(x)

-2x²-8x+12

Step-by-step explanation:

(f-g)(x)

--> f(x) - g(x)

-->  3x² - 2x + 4 -(5x² + 6x - 8)

--> 3x² - 2x + 4 -5x² - 6x + 8

--> -2x²-8x+12

-2x^2- 8x + 12.

Step-by-step explanation:

(f - g)(x) = f(x) - g(x)

= 3x^2 - 2x + 4 - (5x^2 + 6x - 8)  

Distributing the negative over the parentheses:

= 3x^2 - 2x + 4 - 5x^2 - 6x + 8

= -2x^2- 8x + 12.

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

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!