Mathematics, 05.12.2019 01:31 juliannxkim
Researchers randomly choose two groups from 15 volunteers. over a period of 9 weeks, one group watches television before going to sleep, and the other does not. volunteers wear monitoring devices while sleeping, and researchers record dream activity. which type of study method is described in each situation?
a. not enough information given.
b. observational study
c. survey
d. controlled experiment
Answers: 2
Mathematics, 21.06.2019 16:30
What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.
Answers: 2
Mathematics, 21.06.2019 19:30
Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)
Answers: 1
Mathematics, 21.06.2019 22:00
In dire need~! describe how to use area models to find the quotient 2/3 divided by 1/5. check your work by also finding the quotient 2/3 divided by 1/5 using numerical operations only.
Answers: 3
Researchers randomly choose two groups from 15 volunteers. over a period of 9 weeks, one group watch...
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