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Mathematics 7 Online
OpenStudy (tester97):

I WILL GIVE A SHINY MEDAL AND FAN YOU!!! A football is kicked into the air from an initial height of 4 feet. The height, in feet, of the football above the ground is given by s (t)=-16^2+50t+4, where t is time, in seconds, and t>=0. At what time will the football be 25 feet above the ground? 3.625 seconds 3.20 seconds 0.5 seconds or 3.625 seconds 0.5 seconds or 2.625 seconds

OpenStudy (shamil98):

25 = -16t^2 + 50t + 4 ? try solving this

OpenStudy (tester97):

do i move the 25 over then use the quad formula?

OpenStudy (shamil98):

mhm

OpenStudy (shamil98):

wolfram saves you time http://www.wolframalpha.com/input/?i=25+%3D+-16t%5E2+%2B+50t+%2B+4

OpenStudy (tester97):

oh ok thanks sham wam bam :) i would fan ya but i already did but i still will medal u cos i know u likes ur medals ^_^

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