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Explore data points of 17 tree sections with volume calculations using Disk and Washer methods. Did you know Latvia hosted the first decorated Christmas tree in 1510 and more interesting facts?
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17 Sections • 181 Data Points • Disk and Washer Method used to find volume
Section 1 – Method: Washer Integral: p[3.80.35 (.235x3 – 2.74x2 + 9.626x + 7.488)2 – (.1716x4 – 1.6199x3 + 5.5448x2 – 10.4472x + 13.2523)2dx Volume: 17101.80 mm3
Section 2 – Method: Disk Integral: p[53.8 (-1.53x3 + 20.95x2 – 96.567x + 164.82)2dx Volume: 5724.36 mm3
Section 3 – Method: Disk Integral: p[7.65 (.4143x3 – 8.7318x2 + 60.4227x – 122.5632)2dx Volume: 11362.96 mm3
Section 4 – Method: Disk Integral: p[11.97.6 (-.06458x4 + 2.6434x3 – 40.465x2 + 273.5502x – 672.386)2dx Volume: 17885.15 mm3
Section 5 – Method: Washer Integral: p[12.211.9 (-2.5x2 + 59.25x – 338.95)2 – (x – 11.5)2dx Volume: 879.7652 mm3
Section 6 – Method: Washer Integral: p[12.712.2 (-1.4896x2 + 39.0832x – 243.2927)2 – (x – 11.5)2dx Volume: 1560.28 mm3
Section 7 – Method: Washer Integral: p[14.812.7 (.5384x3 – 22.4604x2 + 310.8937x – 1415.9257)2 – (1)2dx Volume: 6159.14 mm3
Section 8 – Method: Washer Integral: p[19.514.8 (.04731x4 – 3.09185x3 + 74.948x2 -798.3365x +3163.4085)2 – (1)2dx Volume: 12184.44 mm3
Section 9 – Method: Washer Integral: p[21.819.5 (1.1474x3 – 72.0222x2 + 1504.7228x – 10454.412)2 – (1)2dx Volume: 4230.77 mm3
Section 10 – Method: Washer Integral: p[25.721.8 (.3329x3 – 24.2315x2 + 586.1303x – 4703.2505)2 – (1)2dx Volume: 5303.72 mm3
Section 11 – Method: Washer Integral: p[26.525.7 (4.1667x3 – 326.9643x2 + 8553.4048x – 74588.1)2 – (1)2dx Volume: 699.00 mm3
Section 12 – Method: Washer Integral: p[27.4526.5 (.5469x3 – 45.1543x2 + 1241.2663x – 11354.36)2 – (27.5 – x)2dx Volume: 932.03 mm3
Section 13 – Method: Disk Integral: p[28.2527.45 (2.22x3 – 18.50975x2 + 5143.0062x – 47615.3198)2dx Volume: 598.94 mm3
Section 14 – Method: Disk Integral: p[31.6528.25 (.2156x3 – 19.8274x2 + 606.7192x – 6171.9353)2dx Volume: 2342.68 mm3
Section 15 – Method: Disk Integral: p[34.331.65 (.4887x3 – 49.2722x2 + 1654.781x – 18507.6127)2dx Volume: 1174.96 mm3
Section 16 – Method: Disk Integral: p[37.234.3 (.3307x3 – 36.1048x2 + 1312.715x – 15890.971)2dx Volume: 908.16 mm3
Section 17 – Method: Disk Integral: p[40.137.2 (.3903x3 – 45.9024x2 + 1798.2987x – 23464.8916)2dx Volume: 667.86 mm3
What Could Be More Fun Than Facts? • In 1510 the first known decorated Christmas tree appeared in Riga, Latvia • One acre of Christmas trees produces the daily oxygen requirement for 18 people. • Approximately 30 million real Christmas trees are sold in North America every year, totally over $1.2 billion in sales. About 78% of these are pre-cut trees and 22% cut-your-own. • Only seven months, four days, 15 hours, and 23 minutes (at the beginning of this period) until CHRISTMAS