Mathematics, 17.08.2019 04:10 kcain1020
Asurvey of 225 students showed the mean number of hours spent studying per week was 20.6 and the standard deviation was 2.7.
assuming a 90% confidence level, the margin of error is approximately
Answers: 3
Mathematics, 20.06.2019 18:04
The parking lot of a store has the shape shown. all angles are right angles. what is the area of the parking lot?
Answers: 3
Mathematics, 21.06.2019 21:30
He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?
Answers: 1
Mathematics, 22.06.2019 01:30
Acontainer holds 0.7 liters of oil and vinegar. 3/4 of the mixture is vinegar. how many liters of oil are in the container? express your answer as both a fraction and a decimal.
Answers: 1
Asurvey of 225 students showed the mean number of hours spent studying per week was 20.6 and the sta...
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