justin5163
23.03.2021 •
Mathematics
Classify the triangles
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Ответ:
Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
tinyurl.com/wpazsebu
Ответ:
10C3= 10!/ (10-3)! 3!= 10*9*8 / 3*2= 120 ways
There are 2 defective resistors and 8 normal resistors. The possible ways to take 1 defective resistors and 2 normal resistors would be: 2C1* 8C2= 2* 8*7/2 = 56 possible ways
Then, the probability of getting 1 defective resistor would be: 56ways / 120 ways= 46.7%