Simplify the expression. Assume that all variables are positive.
? 
A. 
B. 
C. 7x4
D. x4
Answer: C
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Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.n(A ? B) + n(A ? B) = n(A) + n(B)
A. True B. False
A game has payoff matrix 
. R uses the strategy [ 0.4 0.6 ] and C uses the strategy 
. What is the expected value of the game?
A. 0.54 B. -0.98 C. 0.14 D. -0.90 E. none of these
Solve the problem.A company estimates that the daily cost (in dollars) of producing x chocolate bars is given by 
Currently, the company produces 280 chocolate bars per day. Use marginal cost to estimate the increase in the daily cost if one additional chocolate bar is produced per day.
A. $0.26 B. $0.32 C. $32.00 D. $26.40
Perform the indicated operations and simplify.
A. 
B. 
C. 
D. 
E. 