Find the expected value of the probability density function to the nearest hundredth.f(x) = 
- 
; [3, 4]
A. 3.50
B. 3.75
C. 3.53
D. 8.28
Answer: C
Mathematics
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Provide an appropriate response.If a number is equal to the absolute value of its opposite, what can you say about the number?
A. The number must be zero or positive. B. The number must be negative or zero. C. The number must be negative. D. The number must be positive.
Mathematics
Replace the polar equation with an equivalent Cartesian equation. r = 28 sin ?
A. x2 + (y - 14)2 = 196 B. y = 28 C. x2 + (y - 28)2 = 196 D. (x - 14)2 + y2 = 196
Mathematics
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the x-axis. Use the method of disks.y = 
, y = 0, x = 0, x = 7
A. 14?
B. 196?
C. 
?
D. 
?
Mathematics
Graph the solution of the system of linear inequalities.
A. 
B. 
C. 
D. 
Mathematics