Find the variance of the probability density function to the nearest hundredth.f(x) = 
; [3, 6]
A. 1.89
B. 0.38
C. 0.75
D. 0
Answer: C
Mathematics
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Express the function in the form f(x) = a(x - h)2 + k and indicate the vertex.f(x) = -x2 - 12x + 3
A. f(x) = -(x - 6)2 - 105 vertex: (6, -105) B. f(x) = -(x - 6)2 - 33 vertex: (6, -33) C. f(x) = -(x + 6)2 + 39 vertex: (-6, 39) D. f(x) = -(x + 12)2 + 3 vertex: (-12, 3)
Mathematics
Find 
and the domain of the composite function.
?
?
?
A. 
Domain of 
: all real numbers x
B.
Domain of : all real numbers x
C.
Domain of : all real numbers x
D.
Domain of : all real numbers x
E.
Domain of : all real numbers x
Mathematics
Identify p, b, and a. Do not solve for the unknown.What percent of 125 is 30?
A. 30; b; 125 B. 30; 125; a C. p; 125; 30 D. p; 30; 125
Mathematics
Perform the indicated operation.
- 
A. 
B. 
C. 
D. 
Mathematics