Mathematics, 25.06.2019 16:00 ProAtWork7
Sally drives 66 miles in 3 hours and molly drives 72 miles in 4 hours. what is the difference between their average speed, in miles per hour? a.4 b.6 c.18 d.22 i will mark brainiest
Answers: 1
Mathematics, 21.06.2019 13:00
Renita analyzed two dot plots showing the snowfall during the winter months for city a and for city b. she found that the median snowfall is 5 inches less in city a than in city b. the mean snowfall is about 2 inches less in city a than in city b. which explains why there is a difference in the measures of center for the sets of data?
Answers: 3
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 20:30
Someone me what is the area of this figure? 18m 18m 8m 16m
Answers: 2
Sally drives 66 miles in 3 hours and molly drives 72 miles in 4 hours. what is the difference betwee...
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