Evaluate tan(cos^-1 3/5) and assume that all angles are in quadrant i.

Option c

Step-by-step explanation:

We assume that the angle is in the first quadrant.

Observe the attached image.

if

So:

By definition:

So:

adjacent side = 3

hypotenuse = 5.

Observe the attached image

We find the opposite side "x" using the Pythagorean theorem.

Then, for the angle u:

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

i dont have an answer

step-by-step explanation: