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MalikaJones
27.07.2019 •
Mathematics
Atriangle has verices at (4,-2), (-3,0) and (1,3). what is the approximate perimeter of the triangle? 1. 17 units 2.18 units 3.19 units 4.20 units
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Ответ:
You have three points and need to find the distances between each pair of them. You can do this with the Pythagoras theorem applied to each: For the first pair (1, 3), (2, -3)(2 - 1) is the change in distance between the x-coordinates and(3 - -3) is the change in distance between the y (2 - 1)2 + (3 + 3)2 = c21 + 36 = c2c = √37 Repeat for (2, -3), (-1, -1) and(-1, -1), (1, 3) Add your c's together and you will have your perimeter
Have a nice day
Ответ:
490*x + 700*y > 4000
It is < as it can be equal to 4000 per week or less than.