H(t)=-16t^2+1221 is the function for the height as a function of time. It will hit the ground when h=0 so:
-16t^2+1221=0
16t^2-1221=0
16t^2=1221
t^2=1221/16
t=√(1221/16) seconds
t≈8.74 seconds (to nearest hundredth of a second)
Answer:
The answers are 25 37 39 308 I think
Step-by-step explanation:
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It's a square. A parallelogram with four equal sides is a square.
