FAN MEDAL INSTAGRAM
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?
@saiyan @vocaloid @welshfella

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- anonymous

the height in feet, right?

- Vocaloid

0.7 is the portion of the previous height that the ball bounces to
so, the ball starts at 9, and then on the second bounce, it bounces (0.7)*9 feet, and on the third bounce, it bounces to (0.7)*(0.7)*9 feet, and so on...

- anonymous

Answers:
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.
@Vocaloid so its A

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- anonymous

- Vocaloid

no, it's not A, please read my response carefully

- anonymous

C because it is getting smaller each time @Vocaloid

- Vocaloid

right

- Vocaloid

0.7 = 70%

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