Let tn be the number of ways to tile a 2 × n rectangle using 1 × 1 tiles and l-tiles. an l-tile is a 2 × 2 tile with the upper-right 1 × 1 square deleted. (an l tile may be rotated so that the “missing” square appears in any of the four positions.) find a recursive formula for tn along with enough initial conditions to get the recursion started. use this recursive formula to find a closed formula for tn.

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step-by-step explanation:

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the answer is about 24 dollars

measurement of the swimming pool is given as = 7 yards 4.79 feet

first we will convert this to yards only.

1 foot = 0.33 yards

so, 4.79 feet = yards

so total yards are = yards

now we will convert this in meters.

1 yard = 0.914 meters

8.580 yards = meters

0.842 m = 0.842*100 = 84.2 cm

this becomes 7 meters and 84.2 cm

hence, the pool is 7 meters and 84.2 cm wide.