Answer:
Why U tELLING us TO ANSWER UR WORKKKKK AHHHHH
Step-by-step explanation:
When the penny hits the ground, h will = 0.
So: Set h(t) = 0 = -4.9t^2 + 0t + 150 m
Then 4.9t^2 = 150, and so t^2 = sqrt(150 / 4.9) = plus or minus 5.53 sec.
We can use only the positive root, as we're measuring time.
t = 5.5 sec (answer)
Answer:
uhm.....what?
Step-by-step explanation:
Yes, because if you have x=5 and x=10 they are parallel lines to each other.
Not all 30-story buildings are the same height. Depends on how tall the ceiling is on each floor. But usually it is around 300 feet
