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In a clinical trial for a new headache medication, participants are randomly assigned to a treatment group or a placebo group. They do not know whether they are receiving the medication or a placebo. The
answered
Jun 28, 2018
Mathematics
high-school
5
votes
92.7k
views
Which scientific advancement is linked to the Muslim scholar Al- Khwarizmi? A. He developed a unified theory of quantum mechanics B. He transformed the field of particle physics C. He invented a new branch
answered
Mar 25, 2018
History
middle-school
5
votes
107k
views
This diagram of airport runway intersections shows two parallel runways. A taxi way crosses both runways. How are 6 and 2 related? a)corresponding angles b) alternate interior angles c)same side interior
answered
Feb 17, 2018
Mathematics
high-school
4
votes
120k
views
Hurston’s situation upon moving to Harlem could be best described as ______________. a.poor and hopeless c.well-to-do and over confident b.poor but hopeful d.jaded and disengaged
answered
Jan 21, 2018
History
high-school
4
votes
156k
views
Which of the statments below is not a reason to avoid bias? A. It reinforces stereotypes. B. It creates barriers. C. It leads to conflict. D. It upsets a lot of people.
answered
Oct 19, 2017
Social Studies
high-school
1
vote
169k
views
Stuart Company estimates that variable costs will be 60% of sales, and fixed costs will total $800,000. The selling price of the product is $4. Instructions (a) Prepare a CVP graph, assuming maximum sales
answered
Oct 11, 2017
Business
high-school
1
vote
158k
views
A complex number, (a + bi), multiplied by (2 + 3i) and added to -i gives the product of (-11 + 5i) and (1 – i). a = and b =
answered
Aug 16, 2017
Mathematics
high-school
3
votes
189k
views
What are the main problems for a nation transitioning to capitalism?
answered
Feb 6, 2017
History
high-school
4
votes
2.1k
views
E. coli causes diarrhea when food infected by this bacteria is consumed. However, E.coli also aids in the digestion of food. Which of the following statement justifies its role? E. Coli function depends
answered
Jan 2, 2017
Biology
high-school
6
votes
79.1k
views
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