Mathematics, 29.05.2020 03:03 kyra737
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Viewer's Age Group Excellent Good Average Poor Marginal Total 16–25 52 42 12 7 113 26–35 33 50 5 9 97 36–45 58 12 28 34 132 46–55 25 17 22 12 76 56+ 12 5 3 8 28 Marginal Total 180 126 70 70 446 Note: A rating of good or excellent means the audience liked the movie, while a rating of poor means the audience disliked the movie. A movie producer conducted a survey after a preview screening of her new movie to find out how the film would be received by viewers from different age groups. The table shows the numbers of viewers in different age groups who rated the film excellent, good, average, and poor. Out of the total respondents, the percentage of respondents from the 46–55 age group who rated the film excellent is %. Write your answer up to two decimal places.
Answers: 2
Mathematics, 21.06.2019 16:50
The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60
Answers: 1
Mathematics, 21.06.2019 17:00
(! ) three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder
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Mathematics, 21.06.2019 17:30
What is the shape of the height and weight distribution
Answers: 2
Mathematics, 21.06.2019 18:30
Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.
Answers: 1
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fract...
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