# Algebra 2

A ball is dropped from a height of 25 feet and allowed to continue to bounce until it eventually comes to a rest. Each time the ball bounces it rebounds to 45 of its previous height.

After which bounce is the ball's rebound height 10.24 ft?

1. 👍 1
2. 👎 0
3. 👁 693
1. On the nth bounce it rises to a height of 25 * 0.45^n

so, solve for n in

25*.45^n = 10.24

You sure there's no typo?
25*.45 = 11.25
11.25*.45 = 5.06

1. 👍 0
2. 👎 0
2. Small typo it rebounds to 4/5 of its previous height

1. 👍 0
2. 👎 0
3. oh. well, then change the formula and solve for n.

1. 👍 0
2. 👎 0
4. A ball is dropped from a height of 25 feet and allowed to continue to bounce until it eventually comes to a rest. Each time the ball bounces it rebounds to 45 of its previous height.

After which bounce is the ball's rebound height 10.24 ft?

Bounce 3
Bounce 5
Bounce 4
Bounce 6

1. 👍 2
2. 👎 1

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