If an arrow is shot upward on Mars with a speed of 58 m/s, its height in meters t seconds later is given by y = 58t − 1.86t2. (Round your answers to two decimal places.) (a) Find the average speed over the given time intervals.

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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

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right