Answer:
3.29 s
Step-by-step explanation:
We are given that
Height of building=240
Initial velocity=20ft/s
The height of the ball after t seconds is given by

When the ball strike the ground then
h(t)=0


Quadratic formula:

Using the quadratic formula




Time cannot be negative .Therefore,
t=3.29 s
divide 32 by 8
32/8 = 4 students went abroad
Answer:
im pretty sure you have to cross muliply
but i learned in school what ever you do to the top do to the bottom
hope it helps
sorry no definet answer
Step-by-step explanation:
3 , because, 8 think i because, so deinslfy and I have to do this for the next week or so and i and again to je to park on je road and then we Iz