I needd help please
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Answers: 2
Mathematics, 21.06.2019 17:20
Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?
Answers: 2
Mathematics, 22.06.2019 02:20
The students at jefferson middle school are raising money for a charity by selling t-shirts and hats. the number of t-shirts sold was 3 times the number of hats. the profit was $5 for each t-shirt sold and $2.50 for each hat sold. the students raised $840 for the charity. they used the system below to analyze their success and found the solution to be (144, 48). 5x+2.50y=840 x=3y how much did they earn from t-shirt sales?
Answers: 2
Mathematics, 22.06.2019 02:30
Joline is solving the equation 0=x^2-5x-4 using the quadratic formula which value is the negative real number solution to her quadratic equation round to the nearest tenth if necessary
Answers: 1
Mathematics, 22.03.2021 15:30
English, 22.03.2021 15:30
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Biology, 22.03.2021 15:30
Mathematics, 22.03.2021 15:30
Mathematics, 22.03.2021 15:30
Mathematics, 22.03.2021 15:30
Mathematics, 22.03.2021 15:30
Mathematics, 22.03.2021 15:30