Please answer this question now

4.6 or √21

Step-by-step explanation:

We will use the pythagorean theorem which states that;

x² + y² = z²

Here,

x = line XY (10)

y = line XW (y)

z = line WY ( 11)

10² + y² = 11²

100 + y² = 121

y² = 121 - 100

y² = 21

y = √21

∴ y = √21 or 4.6

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