Answer:
i think but not sure that answer $6.25
Answer:
x - y = 3
2x - y = 2
Step-by-step explanation:
x = 3 + y
2(3 + y) - y = 2
6 + 2y - y = 2
y = 2 - 6
y = -4
x = 3 + (-4)
x = 3 - 4
x = -1
Verified
The answer is H=40/7 I think
I got 1808 is your multiple choice wrong?
Answer:
39.2 m/s
Step-by-step explanation:
Let a = 9.8 m/s^2, t = 8 sec, find the initial velocity v
After time t, the rock hit the ground, so the height h = 0
Use h = vt - at^2/2 = 0
v = at/2 = 9.8 * 8/2 = 39.2 m/s