Complementary angles are angle pairs whose measures sum to one right angle (14 turn,90°, or π2 radians)
Answer: the answer is A
Step-by-step explanation:
Between-group design compares two groups (randomly formed) on the same task, such as movement speed.
Given things that there are two groups that are randomly formed for the same task.
A between-group design in experimental design is an experiment in which two or more groups of individuals are assessed simultaneously by separate testing factors. This design is typically used instead of, or in conjunction with, the within-subject design, which applies identical modifications of circumstances to each participant in order to monitor the reactions.
Learn more about experimental designs at brainly.com/question/17280313
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Answer:
Step-by-step explanation:
7 books.................................3 magazines
14 books.................................6 magazines
21 books................................9 magazines
28 books..............................12 magazines
of course we ca do it
7/3=28/x
x=(3*28)/7=12
