Mathematics, 26.08.2021 08:50 SoyAmbia
The number of kilograms, y, of a radioactive element that remains after t hours can be modeled by the equation y=0.23(0.91)t. What is the rate of decrease of this radioactive element?
Answers: 3
Mathematics, 22.06.2019 02:20
Combine like terms to create an equivalent expression. make sure to simplify coefficients and constants as well. -6/5-2/3v+4/15+1/3v
Answers: 2
Mathematics, 22.06.2019 03:50
Arandom sample of n = 25 observations is taken from a n(Β΅, Ο ) population. a 95% confidence interval for Β΅ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 β Ξ±)% needed.
Answers: 3
Mathematics, 22.06.2019 04:40
Which statement is true about the function f(x)= square root -x ? the domain of the graph is all real numbers. the range of the graph is all real numbers. the domain of the graph is all real numbers less than or equal to 0. the range of the graph is all real numbers less than or equal to 0.
Answers: 3
The number of kilograms, y, of a radioactive element that remains after t hours can be modeled by th...
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