A person standing close to the edge on the top of a 400-ft building drops a baseball. The quadratic function h(t)=-16t^2+400 models the ball’s height above the ground, h(t), in feet, t seconds after it was dropped. When will the object be 336 feet above ground level? Show all work AND interpret the meaning in the context of the problem.

15 3/4t^2 + 5 1/4

Explanation:

h(t)=-16t^2+400

We can add 400 then - 64 and show as 8^2

= h(t)=-16t^2+400 - 8^2  

But we also need to change 16t^2;

We divide 64 into 16 = 16/64 =0.25

and show 16t^2 changes by 0.25 = 1/4

15 3/4t^2 + 400-64

Can now look like

15 3/4t^2 + 5 1/4

As 5 1/4 = 64 x 5 1/4 = 336

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.

salary

step-by-step explanation: