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charle [14.2K]
2 years ago
5

Element X decays radioactively with a half life of 12 minutes. If there are 690 grams of Element X, how long, to the nearest ten

th of a minute, would it take the element to decay to 30 grams?

Mathematics
1 answer:
Alexeev081 [22]2 years ago
7 0

Answer:

the answer and explanation of the question is in the picture

Step-by-step explanation:

hope this helps

please like and Mark as brainliest

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4 0
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A random sample of n = 16 professors from a university has been selected; salaries have been plotted on the following Q-Q plot.
Semenov [28]

Answer:

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Step-by-step explanation:

This is a case in which, from a sample os size n=16, a confidence interval is constructed.

The objective of the confidence interval is to give a range in which the real mean of the population is placed, with a degree of confidence given by the level of significance. In this case, the probability that the real mean is within the interval is 95%.

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