Answer:
x=5.6
Step-by-step explanation:
Look at drawing seen above.
Answer:
The maximum revenue will be
at price 
Step-by-step explanation:
Given:

Find the vertex of the parabola represented by given equation:

When
then

The maximum revenue will be
at price 
Answer:
C is the answer 3rd one...
The correct answer on edge is
A. about 2.5 years
Answer:
The question gives you V0 as 220, so plug that in first.
h=-16t2+220t.
Then it says to find the time (solve for t), when the height is 400 ft. Plug 500 ft in as h and solve for t.
500=-16t2+220t.
To solve this, set the quadratic equal to 0 by subtracting 500 from both sides (0=-16t2+220t-500) and use the quadratic formula!
Step-by-step explanation: