a ladder 12 m long just reachese the roof of a building. if the ladder makes an angle of 60° with the building, find the height of building.​

x/12 = sin(60°)

so x = 12 × 0.86602540378

x = 10.3923048454 m ~ 10.4 m ~ 10m

Hope it 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

the answer is d

step-by-step explanation: