The graph that represents the system of inequalities is graph 3
From the equation of motion, we know,

Where s= displacement
u= initial velocity
a= gravitational force
t= time
Displacement is 0 since the ball comes back to the same point from where it was thrown.
A =
since the ball is thrown upwards.
Plug the known values into the equation.
=> 
Solving for u gives :
u= 16.67 m/ sec ....... equation (1)
At maximum height, final velocity i.e v is 0
Time take to reach the top = 

=> 
Solving for s we get
s= 14.16 m
Answer:
81
Step-by-step explanation:
Answer:
y=-6/5x + 1
Step-by-step explanation:
A. 35% decrease yearly
B. 267.75
C. How much the computer is worth after 4 years