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3 October, 23:49

A ball is dropped from a certain height. The function below represents the height f (n), in feet, to which the ball bounces at the nth bounce:

f (n) = 9 (0.7) n

What does the number 0.7 represent?

The ball bounces to 30% of its previous height with each bounce.

The height at which the ball bounces at the nth bounce is 0.3 feet.

The ball bounces to 70% of its previous height with each bounce.

The height from which the ball was dropped at the nth bounce is 0.7 feet.

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Answers (2)
  1. 3 October, 23:54
    0
    The ball bounces to 70% of its previous height with each bounce.

    Step-by-step explanation:

    A ball is dropped from a certain height. The function below represents the height f (n), in feet, to which the ball bounces at the nth bounce:

    f (n) = 9 (0.7) n

    The number 0.7 represents that the ball bounces to 70% of its previous height with each bounce.
  2. 4 October, 00:16
    0
    The ball bounces to 70% of its previous height with each bounce.

    Step-by-step explanation:

    In physics terminology, the number 0.7 is the coefficient of restitution. It is the ratio of the height of bounce (n+1) to the height of bounce (n).

    The meaning of the number is that the ball bounces to 70% of the height of the previous bounce.
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