TrueKing184
30.12.2020 •
Mathematics
The following two-way table describes student's after school activities. Find the probability that a randomly selected student is in music/drama. Grade Sports Music/Drama Work Sophomore 20 7 3 Junior 20 13 2 Senior 25 5 5 P(Music/Drama) = [?] Round to the nearest hundredth.
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Ответ:
60° 60° 60°
60°
Step-by-step explanation:
In any triangle, the sum of its interior angles is 180°, and 60+60+60=180.
As for the other question, we can see that angle5=angle1, and angle6=angle2, due to the parallelism of the lines.
Angle5+angle6=180°, therefore
Angle6=180-120=60°=angle2