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 problem.When air friction is considered, the time t (in s) it takes a certain falling object to attain a velocity v (in ft/s) is given by 
Find an expression for dt/dv in terms of v.
A. 5 ln 
B. 
C. 
D. 
Mathematics
Name the quadrant, if any, in which the point is located.(-11, -13)
A. IV B. None C. II D. III
Mathematics
Multiply. 
A. 3.251778 B. 3251.778 C. 325.1778 D. 32.51778
Mathematics
Factor using the ac-method.4x4 + 12x2 + 9
A. (2x2 - 3)(2x2 - 3) B. (2x2 + 1)(2x2 + 9) C. (4x2 + 3)(x2 + 3) D. (2x2 + 3)(2x2 + 3)
Mathematics