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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Provide an appropriate response.The curves y = ax2 + b and y = 2x2 + cx have a common tangent line at the point (-1, 0). Find a, b, and c.

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Solve the equation. Give an exact solution.log5 x = -3

A. -15
B.
C.  
D. 2

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