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syrai7404
19.09.2019 •
Mathematics
Me on these and explain asap
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Ответ:
2. It's kind of hard to explain this one without a visual representation but basically due to the rules of bisectors BC/CD=BA/AD, BC/12=18/8, BC=12x18/8, BC=27
3. The perimeter of the triangle is equal to the sum of the length of all 3 sides, in this case due to the 1:2:3 ratio we can say one side has length l, one side has length 3l, and the third side has length 5l, therefore perimeter equals 5l, 5l=28, l=5.6, 5.6 is the length of the shortest side.
Ответ:
D
Step-by-step explanation:
The median is just the middle number in the data set as in just the middle. The mean on the other hand is the average of the numbers in the data set which also makes a suitable measure of center.