Solve the problem.A continuous random variable X has PDF f(x) = 
x(9 - x), 
Find E(X3).
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the sum of the geometric series for those x for which the series converges.
A. 
B. 
C. 
D. 
Mathematics
Use the figure to find the exact value of the trigonometric function.
?
?
sin 2?
?
A. ?
B. ?
C. ?
?
D. ?
E. 
Mathematics
Suppose that ln 2 = a and ln 5 = b. Use properties of logarithms to write each logarithm in terms of a and b.ln 16
A. 4a B. 8a C. a4 D. ab
Mathematics
Find fraction notation for the percent in the problem.A serving of cooked white rice provides 5% of the daily value of an essential mineral.
A. 
B. 
C. 
D. 
Mathematics