Mathematics, 09.09.2019 16:30 flameftw2005
Agroup of educators want to determine how effective tutoring is in raising students' grades in a math class, so they arrange free tutoring for those who want it. then they compare final exam grades for the group that took advantage of the tutoring and the group that did not. suppose the group participating in the tutoring tended to receive higher grades on the exam. does that show that the tutoring worked? if not, explain why not and suggest a confounding variable.
Answers: 3
Mathematics, 21.06.2019 16:20
Find the value of x for which abcd must be a parallelogram -9-6x x-30
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Mathematics, 21.06.2019 21:30
Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.
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Mathematics, 21.06.2019 23:00
The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?
Answers: 1
Agroup of educators want to determine how effective tutoring is in raising students' grades in a mat...
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