Answer:
X = 45°
Y = 72°
Step-by-step explanation:
There is a supplementary angle (an pair of angles that create a straight line is equal to 180°) and there is the rule that all three angles in a triangle equal 180° as well.
Each participant in a certain study was assigned a sequence of 3 different letters from the set {A, B, C, D, E, F, G, H}. If no
2 answers:
Answer:
300
Step-by-step explanation:
We are given that
Total number of letters used =8
Letters used in one sequence=3
Each participant was assigned a sequence of 3 different letters.
Repetition is not allowed.
Total number of possible participants in the study=
But , we are given that number of possible sequence were not assigned=36
Therefore, total number of participants in the study=336-36=300
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