Mathematics, 18.11.2020 01:00 bebo14
A teacher randomly selects students to answer questions during class. There are 14 boys and 12 girls in the class. Once the teacher selects a student, the teacher does not select that student again until all the other students have been selected. What is the probability that the teacher will select a boy to answer the first question and another boy to answer the second question?
А. 7/13
B. 7/25
C. 7/26
D. 1/13
Answers: 1
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3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?
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The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.
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A teacher randomly selects students to answer questions during class. There are 14 boys and 12 girls...
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