Please help me with 19 and 20. The first best answer gets brainlist.
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Mathematics, 12.12.2020 16:00 meowmeowcow
Please help me with 19 and 20. The first best answer gets brainlist.
Answers: 1
Mathematics, 21.06.2019 15:00
Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.
Answers: 2
Mathematics, 21.06.2019 19:30
Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.
Answers: 1
Mathematics, 21.06.2019 20:00
Segment an is an altitude of right Ξ΄abc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.
Answers: 2
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