(0,4) is the correct answer.
Answer:

Step-by-step explanation:
t = Time taken
u = Initial velocity =17 m/s
v = Final velocity
s = Displacement
a = Acceleration
g = Acceleration due to gravity = 9.81 m/s² = a

Total height the rock is to fall when it is 8 meters from the ground is 

Time taken to reach the maximum height is 1.73 s.

Time taken from the maximum height to the point which is 8 m from the ground is 2.77 s.
So, time taken from the moment of the throw to the point 8 m from the ground is
.
Answer:
3x + 4
Step-by-step explanation:
Step 1 :
Equation at the end of step 1 :
3 • (x - 1) + 7
Step 2 :
Final result :
3x + 4
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Answer: width = 72.50 m
Step-by-step explanation:
P = 2l + 2w
425 = 2( 140 ) + 2w
425 - 280 = 2w
145 = 2w
w = 72.50
The expression is 8(6-4)•2 .