Find the mean of the random variable x associated with the probability density function over the indicated interval. Round your answer to four decimal places.
?
; 
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: C
Mathematics
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Decide whether the statement is true or false.
is irrational.
A. True B. False
Mathematics
Use a graphing calculator to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.5 + 10 + 20 + 40 + 80 + ... + 5 ? 212
A. 40,935 B. 40,957 C. 40,955 D. 40,992
Mathematics
Evaluate the exponential expression.-24
A. -32 B. 16 C. 32 D. -16
Mathematics
Simplify.
A. 4 B. -4 C. 2 D. -2
Mathematics