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shyanne5276
27.03.2021 •
Mathematics
You spin the spinner twice.
1
2
What is the probability of landing on a factor of 60 and then landing on a factor of 42?
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Ответ:
Tangent²=(The whole secant segment)(External secant segment)
2. The whole secant segment is: AD=a+12
3. The external secant segment is: BD=10
4. The tangent segment is: DE=12
5. Then, you have:
DE²=ADxBD
12²=(a+10)10
10(a+10)=12²
6. Therefore, the answer is the third option: 10(a+10)=12²