Mathematics, 17.12.2020 06:30 Morganwing1019
You have 7,520 grams of a radioactive kind of manganese. How much will be left after 84 minutes if its half-life is 21 minutes?
Answers: 2
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What is the solution of the systems of equations? y=2/3x+3 x=-2
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Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?
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Mathematics, 21.06.2019 19:40
Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.
Answers: 3
You have 7,520 grams of a radioactive kind of manganese. How much will be left after 84
minutes if...
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