Mathematics
minimi112
2016-04-18 09:49:42
suppose you drop a tennis ball from a height of 14 feet. After the ball hits the floor, it rebounds to 80% of its previous height. How high will the ball rebound after its third bounce? Round to the nearest tenth.
ANSWERS
Alondra817
2016-04-18 11:49:26

This is a geometric sequence of the form: a(n)=ar^n, a=initial value, r=common ration, n=term number, if we relabel it for h(b) we have h(b)=14(0.8^b) h(3)=14(0.8^3) h(3)≈7.2 ft (to nearest tenth of a foot)

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