Answer:
a. 144 ft
b. 5 s
Step-by-step explanation:
h = -16t² + 64t + 80
a. This is a parabola, so the maximum height is at the vertex.
t = -64 / (2 × -16)
t = 2
h = -16(2)² + 64(2) + 80
h = 144
The apple reaches a maximum height of 144 ft.
b. 0 = -16t² + 64t + 80
0 = t² − 4t − 5
0 = (t + 1) (t − 5)
t = -1 or 5
t must be positive, so it takes 5 seconds to reach the ground.
I would say 32 <span>• 3/4 or 32* 3/4
</span>
<h2>Answer</h2>
Or as ordered pairs: 
<h2>Explanation</h2>
Lets solve our system of equations step by step
equation (1)
equation (2)
1. Solve for 
in equation (2)
equation (3)
2. Replace equation (3) in equation (1) and solve for 
or 
3. Replace the values of in equation (3) and solve for 
- For
or 
- For
or 
So, the solutions of our system of equation are:
Answer:
C
Step-by-step explanation:
2 in this case is the weight and 34 is pounds
the graph is 100% proportional
The answer seems to be 108
