Find the indicated probability.In a family with family with 4 children, excluding multiple births, what is the probability of having 2 girls and 2 boys, in that order? Assume that a boy is as likely as a girl at each birth.
A. 
B. 
C. 
D. 
Answer: C
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Simplify the given expression. Write the answer with variables in alphabetical order and any constant term last.3xy2 + 7xy + 14xy2
A. 10xy2 + 14xy B. 17x2y + 7xy C. 17x2y4 + 7xy D. 17xy2 + 7xy
Evaluate the integral by changing the order of integration in an appropriate way.
A. 4 ln 126 B. 2 ln 126 C. 2 ln 626 D. 4 ln 626
Use Lagrange multipliers to find the maximum value of the function subject to the given constraints.
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Solve the problem.The function 
computes the number of centimeters in x inches and the function 
computes the number of inches in x yards. What is 
and what does it compute?
A. (f?g)(x) = 38.54x; the number of centimeters in x yards B. (f?g)(x) = 91.44x; the number of centimeters in x yards C. (f?g)(x) = 38.54x; the number of centimeters in x inches. D. (f?g)(x) = 91.44x; the number of inches in x yards