Solve the problem.Four boys and three girls are seated, in a row, at random, to watch a play. What is the probability thata) a girl is seated at each end of the row?b) one of the boys is seated in the middle seat?c) boys and girls are seated alternately?
A. a) 
b) 
c) 
B. a) 
b) 
c) 
C. a) 
b) 
c) 
D. a) 
b) 
c) 
Answer: B
Mathematics
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Solve the system. x2 - xy + y2 = 32x2 + xy + 2y2 = 12
A. {(1, 0), (-1, 0)} B. {(2, 0), (-2, 0), (1, 0), (-1, 0)} C. {(2, 1), (1, 2)} D. {(2, 1), (-2, -1), (1, 2), (-1, -2)}
Mathematics
Simplify the sum.(y - 6) + (4y - 3)
A. 8y B. 5y - 9 C. 5y + 9 D. 4y - 9
Mathematics
Evaluate the expression.16 ÷ 
A. 8 B. 64 C. 16 D. 4
Mathematics
Compute the probability of an event for equally likely outcomes (theoretical probability).Two dice are rolled. What is the probability that the sum of the two numbers on the dice will be greater than 9?
A. 
B. 
C. 
D. 6
Mathematics