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1 answer:
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Answer:
Step-by-step explanation:
Given, A class has five boys and nine girls.
Total students = 5+9=14
Number of ways to choose 6 students out of 14= [Using combinations]
Number of ways to choose 4 girls out of 6 (4 girls + 2 boys = 6 ) =
If the teacher randomly picks six students, then the probability that he will pick exactly four girls:-
hence, the required probability = .
Answer:
13 1/8 units³
Step-by-step explanation:
(see attached for reference)
Volume = Length x Width x Height
= 1 1/2 x 3 1/2 x 2 1/2 (convert to improper fractions)
= 3/2 x 7/2 x 5/2
= (3 x 7 x 5) / (2 x 2 x 2 )
= 105/8
= 13 1/8 units³
