Solve the problem.In a game, you have a 
probability of winning 
and a 
probability of losing 
What is your expected winning?
A. $5.10
B. -$4.76
C. $9.86
D. $0.33
Answer: D
Mathematics
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Find a formula for the inverse of the function described below.A size-4 dress in Country C is size 40 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = x - 16
D. f-1(x) = 
+ 16
Mathematics
150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with mean ? = 65 and standard deviation ? = 10.A score of 85 corresponds to a standardized value of
A. 2. B. 8.5. C. 20. D. -2. E. none of these
Mathematics
Graph the curve.r = e?/4 (logarithmic spiral)
A. 
B. 
C. 
D. 
Mathematics
Solve by the substitution method.-0.5x - 0.1y = 1.40.5x - 0.3y = -1.8
A. {(0.3, 5.5)} B. ? C. {(-3.6, 3.3)} D. {(-3, 1)}
Mathematics