What is dc ?

enter the answer in the box.

  DC = 30

Step-by-step explanation:

Point D is the circumcenter of triangle ABC, so it is equidistant from A, B, and C.

We are given the measures of DE and AE, so we can figure AD using the Pythagorean theorem:

  AD² = AE² + DE² . . . . . . . . . . . . . . . E bisects AB, so AE=AB/2=18

  AD = √(18² +24²) = √900 = 30

  DC = AD

  DC = 30

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