Mathematics, 09.12.2019 21:31 jazzhands16
Juan and nina are in the junior high orchestra. as part of the orchestra they each have to learn two instruments. juan is learning to play the violin and the cello. for every 3 hours that juan spends practicing the violin he practices the cello for 2.5 hours. nina is learning to play the viola and cello. for every 3 hours nina spends practicing the viola she practices the cello for 2 hours.
if juan practiced the violin for 9 hours last week and juan and nina practiced the cello for the same amount of time, then nina practiced the viola for
hours last week.
Answers: 1
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?
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Mathematics, 21.06.2019 19:00
Aprojectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t2 + 704t. after how many seconds does the projectile take to reach its maximum height?
Answers: 1
Mathematics, 21.06.2019 23:00
Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.
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Juan and nina are in the junior high orchestra. as part of the orchestra they each have to learn two...
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