Mathematics, 02.03.2021 18:20 townykid96
Element X is a radioactive isotope such that every 9 years, its mass decreases by half.
Given that the initial mass of a sample of Element X is 9300 grams, how much of the
element would remain after 3 years, to the nearest whole number?
Answers: 2
Mathematics, 21.06.2019 18:10
The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%
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Mathematics, 21.06.2019 18:20
Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below.correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance.what is the value of the test statistic? Ο2stat=what is the p-value? p-value=is this value significant atΞ±=0.025?
Answers: 2
Mathematics, 21.06.2019 19:30
Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for Ο, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2
Answers: 1
Mathematics, 21.06.2019 22:30
Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 Γ 10^-20 lb b. 1 Γ 10^20 lb c. 1 Γ 10^2 lb d. 1 Γ 10^-2 lb
Answers: 1
Element X is a radioactive isotope such that every 9 years, its mass decreases by half.
Given that...
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