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Raquelerol
27.02.2020 •
Mathematics
) An engineer deploys a set of sensors. Each sensor reports its location as a point in two-dimensional space. The points are (2, 7), (8, 2), (6, 11), (6, 5), and (11, 6). Use determinants to calculate the area of the polygon formed by the sensors.
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Ответ:
The polygon area is![51.5 U^{2}](/tpl/images/0526/4943/4da0a.png)
Step-by-step explanation:
Points:
(2,7), (8,2), (6,11), (6,5), (11,6)
1. The area of the polygon could be calculate with the eqation:
2. Replace the coordinates in equation for A:
3. Solve the determinant, and calculate A:
The polygon area is![51.5 U^{2}](/tpl/images/0526/4943/4da0a.png)
Ответ:
4 T-shirts and 5 long sleeves shirts.
Step-by-step explanation:
T-shirt cost =$10
Long sleeve shirt cost = $15
Total number of shirts = 9
Total number of T-shirts = 4
Cost of 4 T-shirts = 4 × 10 =$ 40
Total number of long sleeve shirt = 5
Cost of 5 long sleeve shirt = 5 × 15 =$ 75
Verification:
75+40 = $115 proved!