t= 2.25 secs
Step-by-step explanation:
Step 1 :
Equation for motion with uniform acceleration is v = u+ at
where v is the final velocity
u is the initial velocity
a is the acceleration due to gravity
and t is the time
Step 2 :
Here , v = 0 because at the highest point final velocity is 0.
u = 72 feet/sec
a = -32 ft/sec^2
We need to find the time t.
Substituting in the equation we have,
0 = 72 -32 * t
=> 32 t = 72
=> t = 72/32 = 2.25 secs
8x + 4y = 20
4y = 20 - 8x
y = 5 - 2x
I don't understand your question. can you make it clear
Answer: 
Step-by-step explanation:
The solution to the graph of a system of equations is where they intercept. Here, it is at about
.