Answer:
A.
Step-by-step explanation:
Central angle of shaded part
Radius (r) = x unit
Area of the shaded part of

Answer:

Step-by-step explanation:
Given,
Art electives = 3,
History electives = 4,
Computer electives = 5,
Total number of electives = 3 + 4 + 5 = 12,
Since, if a student chooses an art elective and a history elective,
So, the total combination of choosing an art elective and a history elective = 
Also, the total combination of choosing any 2 subjects out of 12 subjects = 
Hence, the probability that a student chooses an art elective and a history elective = 

Which is the required expression.
Answer:
answer is 119/4
Step-by-step explanation:
51/2+23/4-3/2=102+23-6/4=119/4
Answer:
no enough info
Step-by-step explanation:
Exact form: 89/3
Decimal form:29.666666.....
Mixed number: 29 2/3