11-09-2016
Mathematics

contestada

H=39t-5t2 find all the values of t for which the rockets hight is 22 meters

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fennerolivia fennerolivia

11-09-2016

I believe that for this question you will use the quadratic equation which is: (-b +/- sqrt(b^2-4(a)(c))/2a Plug in -5=a, 39=b, 22=c and that should give you 2 answers for t.

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