Math

a model rocket is launched from roof into a large field the path of the rocket can be modeled by the equation y= -0.02x^2+2.3x+6 where x is the horizontal distance ,in meters,from the starting point on the roof and y is the height in meters,of the rocket above the ground . how far horizontally form its starting point will the rocket land?round your answer to the nearest hundredth

57.50m
115.00m
117.55m
235.10m

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  1. when the rocket lands ,
    -0.02x^2+2.3x+6 = 0
    0.02x^2 - 2.3x - 6 = 0
    multiply by 100
    2x^2 - 230x - 600 = 0 , "nicer" numbers
    use the quadratic formula, using the positive answer
    I see it in your choices.

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  2. 117.55? Thanks Reiny!!

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  3. all anwers ??????????

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  4. Its B

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