A radioactive substance has a decay rate of 2.3% per year. What is its half life? Give your answer correct to 2 decimal places.
1 answer:
Please send a message me a picture of the problem and I think it is .023
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Step-by-step explanation:
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Answer:
Distance = 7
Step-by-step explanation:
A(5 , -3) B(5,4)
D = √((4 - (-3))² + (5 - 5)²)
D = √(7² +0)
D = 7
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The answer would be C. 3x + y = 5