Given: An B = {1, 3}, An C = {1, 2}, Bn C = {1, 4}, AUB = {1, 2, 3, 4, 5, 6}, AUC = {1, 2, 3, 4, 5, 7}, BUC = {1, 2, 3, 4, 6, 7}, An Bn C= {1}, and A UBUC = {1, 2, 3, 4, 5, 6, 7). What are the elements in set A?

x divided by 8=y

step-by-step explanation:

b. astronomers

its a straight line parallel to the time axis

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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