Mathematics, 08.03.2021 22:50 ferguag15stu
Which of these expressions are equivalent to −5+(2.5+315)⋅4.25 ? Choose the TWO correct answers.
A.
(−5+5.7)⋅4.25
B.
−5+(5.7)⋅4.25
C.
(2.5+315)⋅−0.75
D.
(5.5+15)⋅4.25−5
E.
(5.5+15)−5+4.25
Answers: 2
Mathematics, 21.06.2019 19:40
It appears that people who are mildly obese are less active than leaner people. one study looked at the average number of minutes per day that people spend standing or walking. among mildly obese people, the mean number of minutes of daily activity (standing or walking) is approximately normally distributed with mean 376 minutes and standard deviation 64 minutes. the mean number of minutes of daily activity for lean people is approximately normally distributed with mean 528 minutes and standard deviation 107 minutes. a researcher records the minutes of activity for an srs of 7 mildly obese people and an srs of 7 lean people. use z-scores rounded to two decimal places to answer the following: what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 mildly obese people exceeds 420 minutes? what is the probability (image for it appears that people who are mildly obese are less active than leaner people. one study looked at the averag0.0001) that the mean number of minutes of daily activity of the 6 lean people exceeds 420 minutes?
Answers: 1
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
Mathematics, 21.06.2019 21:50
What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83
Answers: 1
Mathematics, 21.06.2019 22:30
An ant travels at a constant rate of 30cm every 2 minutes.at what speed does the ant travel per minute
Answers: 2
Which of these expressions are equivalent to −5+(2.5+315)⋅4.25 ? Choose the TWO correct answers.
A....
Mathematics, 21.12.2020 16:40
Mathematics, 21.12.2020 16:40
English, 21.12.2020 16:40
Mathematics, 21.12.2020 16:40
Biology, 21.12.2020 16:40
English, 21.12.2020 16:50
Biology, 21.12.2020 16:50
Mathematics, 21.12.2020 16:50
Arts, 21.12.2020 16:50
Mathematics, 21.12.2020 16:50