Mathematics, 19.07.2019 14:40, billey32
Carbon-11 has half-life of 20 minutes. if a 50 gram sample of carbon -11 begins to decay, write a model for the amount, a, that is still radioactive after m-minutes. then, use your model to determine how much of the original sample is still radioactive after a half- hour. round to the nearest tenth of a gram
Answers: 1
Mathematics, 21.06.2019 17:00, samantha9430
The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.
Answers: 1
Mathematics, 21.06.2019 17:30, chaparro0512
Astore sells two types of radios. one type sells $87 and the other for $119. if 25 were sold and the sales were $2495, how many of the $87 radios were sold a) 5 b) 20 c) 15 d)10
Answers: 2
Mathematics, 21.06.2019 19:30, jrassicworld4ever
Need now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Carbon-11 has half-life of 20 minutes. if a 50 gram sample of carbon -11 begins to decay, write a mo...
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