For the given probability density function, over the given interval, find the mean, the variance, and the standard deviation.f(x) = 
x, [0, 2]
A. ? = 
; ?2 = 
; ? = 
B. ? = 
; ?2 = 
; ? = 
C. ? = 
; ?2 = 
; ? = 
D. ? = 
; ?2 = 
; ? = 
Answer: C
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Use an equation to solve the problem.The average price of homes in one neighborhood decreased 4% since last year, a drop of $3,500. What was the average price of a home last year?
A. $84,500 B. $89,500 C. $86,500 D. $87,500 E. $83,500
Write the geometric series in summation notation.0.9 + 0.09 + 0.009 + . . .
A. 
B. 
C. 
D. 
Find the Cartesian product or cardinal number as requested.A = {i, a}B = {t, d, m}Find A × B.
A. {(i, t), (a, t), (i, d), (a, d)} B. {(i, t), (i, d), (i, m), (a, t), (a, d), (a, m)} C. {(t, i), (t, a), (d, i), (d, a), (m, i), (m, a)} D. {(i, t), (t, a), (i, d), (d, a), (i, m), (m, a)}
Use the graph of the function to draw the graph of the inverse function.
A. 
B. 