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Algebra 9 Online
OpenStudy (anonymous):

a projectile if fired straight upward, with an initial velocity of 400 feet per second. the height of the projectile, h(t), if represented by the function h(t)= =16t^2+400t, where t is the time in seconds how long does it take the projectile to reach the maximum height? 2500seconds 25seconds 6.25seconds 12.5seconds

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