Cos(x) = -0.1. If x and y are complementary, what is sin (y)?

the correct answer to your question is a. 4^4

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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

by definition, an arc subtended by a central angle of some given measure has the same measure. so .