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Mathematics, 30.03.2021 01:00 saintsfan2004
A permutation of integers $1, 2, 3, \ldots, n$ is called hilly if the 2nd, 4th, 6th, $\ldots$ terms are greater than their neighbors. For example, $3,4,1,2$ is hilly while $1,4,3,2$ is not hilly since the fourth term (2) is not greater than the third term (3). Find the number of hilly sequences of length 7.
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1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need
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A permutation of integers $1, 2, 3, \ldots, n$ is called hilly if the 2nd, 4th, 6th, $\ldots$ terms...
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