Answer:
The depth of the reflector is 0.84 feet
Step-by-step explanation:
<em>(See the figure below)</em>
The equation of a parabola centered at the origin with an axis of symmetry on y-axis is:
(1)
With p the distance from the origin to the focus using p=6, the equation (1) of the parabola becomes:
(2)
Note that the point B is on the parabola, so this point should satisfy the parabola equation (2) that allow us to use the value x=4.5 to find the y value associated to it, that it is the depth (h) of the reflector:
, solving for y

Answer:
the 3 one
Step-by-step explanation:
You would have to get the container and put water in it but the container has to hold more than 1 liter so you would see where the water is at the measured point.
Answer:
2x + 3.
Step-by-step explanation:
x + x + 3
= 2x + 3.
Answer:
3:20
Step-by-step explanation:
4:25-15= 4:10
4:10-20=3:50
3:50-30=3:20
School ended at 3:20