barrelracerjare barrelracerjare

24-10-2014
Mathematics

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The height of a ball above the ground in feet is defined by the function h(t) = -16t Squared + 80t +3, where t is the number of seconds after the ball is thrown. What is the value of h(t), two seconds after the ball is thrown?

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paulcox paulcox

24-10-2014

plug in 2 for t.
=> -16*(2^2) +80*2 +3
=> -16*4 +160 +3
=> -64+163
=> 99

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