Mathematics, 26.07.2020 14:01 cami30031cami3003
Carbon–14 is a radioactive isotope that decays exponentially at a rate of 0.0124 percent a year. How many years will it take for carbon–14 to decay to 10 percent of its original amount? The equation for exponential decay is At = A0e–rt.
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Mathematics, 21.06.2019 22:30
Select all of the following expressions that are equal to 2.5.
Answers: 3
Mathematics, 22.06.2019 03:00
Which is the factored form of the polynomial p(x) shown here?
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Mathematics, 22.06.2019 04:20
The weibull distribution is widely used in statistical problems relating to aging of solid insulating materials subjected to aging and stress. use this distribution as a model for time (in hours) to failure of solid insulating specimens subjected to ac voltage. the values of the parameters depend on the voltage and temperature; suppose α = 2.5 and β = 190. (a) what is the probability that a specimen's lifetime is at most 250? less than 250? more than 300? (round your answers to four decimal places.) at most 250 less than 250 more than 300 (b) what is the probability that a specimen's lifetime is between 100 and 250? (round your answer to four decimal places.) (c) what value is such that exactly 50% of all specimens have lifetimes exceeding that value? (round your answer to three decimal places.) hr
Answers: 2
Mathematics, 22.06.2019 08:00
Which expression models the phrase “wally mowed two more lawns than he mowed last week”? n+2 n-2 2-n 2n
Answers: 1
Carbon–14 is a radioactive isotope that decays exponentially at a rate of 0.0124 percent a year. How...
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