A toy cannon ball is launched from a cannon on top of a platform. The function \( h(t)=-5 k^{2}+20 \mathrm{r}+4 \) gives the height, in meters, of the hall \( t \) seconds affer it is launched. Write and solve an inequality to find the times where the ball is more than 12 meters above the ground. Round o ins nearest hundredth. \( 0< \) \( \square \) \( t^{2}+ \) \( \square \) \( t+ \) \( \square \) Click here to type \( \square \) seconds \( <t< \) \( \square \) seconds
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The function given is incorrect. It should be \( h(t) = -5t^2 + 20t + 4 \). Show more…
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