Answer:
Step-by-step explanation:
According to the condition, your terms are arranged as
5, 7 , -7 ,-5, 5, 7, -7, 5, -5,...................
So one loop will have 4 terms: 5, 7, -7. -5

Hence after 63 loops, the new loop has only 3 terms. That means the last loop will be 5, 7 ,-7. In other words, the 255th term will be -7
We can solve this problem by determining how far the ball travels on each bounce. Once it has hit the ground the 4th time, it will have gone:
Down, up, down, up, down, up, down.
Now, we calculate how far each of these distances are.
Since the first drop is 10 feet, the ball will go up to 5 feet. Then it will fall 5 feet and go up 2.5 feet. The ball will then fall 2.5 feet, and rise 1.25 feet and fall 1.25 feet. Now, we add all these numbers up.
10 + 5 + 5 + 2.5 + 2.5 + 1.25 + 1.25 = 27.5, so the ball will have travelled 27.5 feet.
Answer:
the answer is seven
Step-by-step explanation:
seven
Answer:
The height as a function of time is
h(t) = -(1/2)gt2 + v0t + h0
h(t) = -16t2 + 32t + 20
The ball reaches the ground when h(t) = 0
-16t2 + 32t + 20 = 0
Solve this quadratic equation for t. You will get a positive solution and a negative solution. Discard the negative solution, since time begins at t=0 at the moment the ball is struck. Can you finish from here?