You can
put this solution on YOUR website!
I believe this is supposed to be solved by using the quadratic equation,
but I'm not sure how to work it. Any help would be very much
appreciated!! If a pebble is dropped toward a pond from the top of a
240-ft building, its height h after t s is given by h = 16t^2 + 240. How
long does it take the pebble to pass through a height of 120 ft?
That formula is wrong. It should be h = -16tē + 240.
Just plug 150 for h in the equation and solve first for tē. Then take
square roots of both sides. You'll get approximately t = 2.7 seconds.
Edwin
