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Mathematics, 22.03.2021 16:20 jwhit28

Jia is skipping a rock across a pond. The sequence {4.2, 3.57, 3.0345, 2.5793, …} describes the height of the rock on each successive skip. Which explicit formula describes this geometric sequence? an=4.2(0.15)n−1

an=0.85(4.2)n−1

an=4.2(0.85)n−1

an=3.57(4.2)n−1

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