Find the mean of the random variable x associated with the probability density function over the indicated interval.
?
; 
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: E
Mathematics
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L'Hopital's rule does not help with the given limit. Find the limit some other way.
A. -1 B. 1 C. ? D. 0
Mathematics
Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = 2x2 - 1
A. 
B. 
C. 
D. 
Mathematics
Find z1z2. Write your answer in standard polar form with the argument in radians.z1 = 6
, z2 = 12
A. 72
B. 18
C. 72
D. 18
Mathematics
Solve the problem.The water in a tank weighs 923.44 lb. One cubic foot of water weighs 62.5 lb. How many cubic feet of water are in the tank?
A. 985.94 cubic feet B. 57,715.000 cubic feet C. 0.06768 cubic feet D. 14.77504 cubic feet
Mathematics